Information:  - East Dunbartonshire is one of the 32 council areas of Scotland. It borders onto the north-west of the City of Glasgow. It contains many of the suburbs of Glasgow as well as many of the city's commuter towns and villages. East Dunbartonshire also shares a border with North Lanarkshire, Stirling and West Dunbartonshire. The council area covers part of the historic counties of Dunbartonshire, Lanarkshire and Stirlingshire.  - The Irish Sea (, , , Ulster-Scots: "Airish Sea"), separates the islands of Ireland and Great Britain. It is connected to the Celtic Sea in the south by St George's Channel, and to the Inner Seas off the West Coast of Scotland in the north by the North Channel. Anglesey is the largest island within the Irish Sea, followed by the Isle of Man. The sea is occasionally, but rarely, referred to as the Manx Sea.  - Strathclyde (lit. "Strath of the River Clyde"), originally or Alclud (and Strath-Clota in Anglo-Saxon), was one of the early medieval kingdoms of the Britons in "Hen Ogledd" ("the Old North"), the Brythonic speaking parts of what is now southern Scotland and northern England. The kingdom developed during the post-Roman period. It is also known as Alt Clut, a Brittonic term for Dumbarton Castle, the medieval capital of the region. It may have had its origins with the Brythonic Damnonii people of Ptolemy's "Geography".  - Glasgow  is the largest city in Scotland, and third largest in the United Kingdom. Historically part of Lanarkshire, it is now one of the 32 council areas of Scotland. It is situated on the River Clyde in the country's West Central Lowlands. Inhabitants of the city are referred to as Glaswegians.  - West Dunbartonshire is one of the 32 local government council areas of Scotland. The area lies to the west of the City of Glasgow and contains many of Glasgow's commuter towns and villages, as well as the city's suburbs. West Dunbartonshire also borders onto Argyll and Bute, East Dunbartonshire, Renfrewshire and Stirling.  - The River Clyde is a river, that flows into the Firth of Clyde in Scotland. It is the eighth-longest river in the United Kingdom, and the second-longest in Scotland. Flowing through the major city of Glasgow, it was an important river for shipbuilding and trade in the British Empire. In the early medieval Cumbric language it was known as "Clud" or "Clut", and was central to the Kingdom of Strathclyde ("Teyrnas Ystrad Clut").  - National  The Firth of Clyde encloses the largest and deepest coastal waters in the British Isles, sheltered from the Atlantic Ocean by the Kintyre peninsula which encloses the outer firth in Argyll and Ayrshire, Scotland. The Kilbrannan Sound is a large arm of the Firth of Clyde, separating the Kintyre Peninsula from the Isle of Arran. Within the Firth of Clyde is another major island - the Isle of Bute. Given its strategic location, at the entrance to the middle/upper Clyde, Bute played a vitally important military (naval) role during World War II.  - Scotland (Scots: ) is a country that is part of the United Kingdom and covers the northern third of the island of Great Britain. It shares a border with England to the south, and is otherwise surrounded by the Atlantic Ocean, with the North Sea to the east and the North Channel and Irish Sea to the south-west. In addition to the mainland, the country is made up of more than 790 islands, including the Northern Isles and the Hebrides.  - The North Sea is a marginal sea of the Atlantic Ocean located between Great Britain, Scandinavia, Germany, the Netherlands, Belgium, and France. An epeiric (or "shelf") sea on the European continental shelf, it connects to the ocean through the English Channel in the south and the Norwegian Sea in the north. It is more than long and wide, with an area of around .  - England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west. The Irish Sea lies northwest of England and the Celtic Sea lies to the southwest. England is separated from continental Europe by the North Sea to the east and the English Channel to the south. The country covers five-eighths of the island of Great Britain (which lies in the North Atlantic) in its centre and south; and includes over 100 smaller islands such as the Isles of Scilly, and the Isle of Wight.  - Dumbarton ( / dmbrtn / ; from Scottish Gaelic Dùn Breatann or Dùn Breatainn , meaning `` fort of the Britons '' pronounced ( tumpt ) ) is a town and burgh which is the administrative centre of the council area of West Dunbartonshire , and formerly of the historic county of Dunbartonshire , in the West - Central Lowlands of Scotland . The town lies on the north bank of the River Clyde where the River Leven flows into the Clyde estuary . As of 2006 , the town had an estimated population of 19,990 and forms a conurbation with Alexandria , Bonhill and Renton with a combined estimated population of 44,690 . Dumbarton functioned as the capital of the ancient Kingdom of Alclud , and later as the county town of the county of Dunbartonshire . Dumbarton Castle , sitting on top of Dumbarton Rock , dominates the area . Dumbarton was a Royal burgh between 1222 and 1975 . Dumbarton emerged from the 19th century as a centre for shipbuilding , glassmaking , and whisky production . However these industries have since declined , or demised altogether , and Dumbarton today increasingly functions as a commuter town for the major City of Glasgow which is 13 miles ( 21 km ) east - southeast . Dumbarton F.C. is the burgh 's local association football club . Dumbarton is home to the BBC Scotland 's drama studios , notable for filming River City , Hope Springs and Personal Affairs .  - The British Empire comprised the dominions, colonies, protectorates, mandates and other territories ruled or administered by the United Kingdom and its predecessor states. It originated with the overseas possessions and trading posts established by England between the late 16th and early 18th centuries. At its height, it was the largest empire in history and, for over a century, was the foremost global power. By 1913, the British Empire held sway over 412 million people, % of the world population at the time, and by 1920, it covered , % of the Earth's total land area. As a result, its political, legal, linguistic and cultural legacy is widespread. At the peak of its power, the phrase "the empire on which the sun never sets" was often used to describe the British Empire, because its expanse around the globe meant that the sun was always shining on at least one of its territories.  - The Hebrides (Scottish Gaelic: "Innse Gall"; Old Norse: "Suðreyjar") comprise a widespread and diverse archipelago off the west coast of mainland Scotland. There are two main groups: the Inner and Outer Hebrides. These islands have a long history of occupation dating back to the Mesolithic, and the culture of the residents has been affected by the successive influences of Celtic, Norse, and English-speaking peoples. This diversity is reflected in the names given to the islands, which are derived from the languages that have been spoken there in historic and perhaps prehistoric times.  - A registration county was, in Great Britain and Ireland, a statistical unit used for the registration of births, deaths and marriages and for the output of census information. In Scotland registration counties are used for land registration purposes.  - The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a sovereign country in western Europe. Lying off the north-western coast of the European mainland, it includes the island of Great Britain (the name of which is also loosely applied to the whole country), the north-eastern part of the island of Ireland, and many smaller islands. Northern Ireland is the only part of the UK that shares a land border with another sovereign statethe Republic of Ireland. Apart from this land border, the UK is surrounded by the Atlantic Ocean, with the North Sea to its east, the English Channel to its south and the Celtic Sea to its south-south-west, giving it the 12th-longest coastline in the world. The Irish Sea lies between Great Britain and Ireland. With an area of , the UK is the 78th-largest sovereign state in the world and the 11th-largest in Europe. It is also the 21st-most populous country, with an estimated 65.1 million inhabitants. Together, this makes it the fourth most densely populated country in the European Union.  - A port is a location on a coast or shore containing one or more harbors where ships can dock and transfer people or cargo to or from land. Port locations are selected to optimize access to land and navigable water, for commercial demand, and for shelter from wind and waves. Ports with deeper water are rarer, but can handle larger ships. Since ports throughout history handled every kind of traffic, support and storage facilities vary widely, may extend for miles, and dominate the local economy. Some ports have an important military role.  - Dunbartonshire ("Siorrachd Dhùn Bhreatainn" in Gaelic) or the County of Dumbarton is a lieutenancy area and registration county in the west central Lowlands of Scotland lying to the north of the River Clyde.  - Argyll and Bute is both one of 32 unitary authority council areas and a lieutenancy area in Scotland. The administrative centre for the council area is in Lochgilphead.  - Renfrewshire is one of 32 council areas of Scotland. Located in the west central Lowlands, it is one of three council areas contained within the boundaries of the historic county of Renfrewshire, the others being East Renfrewshire to the east and Inverclyde to the west. It also shares borders with Glasgow, North Ayrshire and West Dunbartonshire. The term Renfrewshire may also be used to refer to this historic county, also known as the County of Renfrew or Greater Renfrewshire, which remains in use as a registration county and lieutenancy area.  - The Central Lowlands or Midland Valley is a geologically defined area of relatively low-lying land in southern Scotland. It consists of a rift valley between the Highland Boundary Fault to the north and the Southern Uplands Fault to the south. The Central Lowlands are one of the three main geographical sub-divisions of Scotland, the other two being the Highlands and Islands which lie to the north, northwest and the Southern Uplands, which lie south of the associated second fault line.  - The Northern Isles  is an archipelago comprising a chain of islands off the north coast of mainland Scotland. The climate is cool and temperate and much influenced by the surrounding seas. There are two main island groups: Shetland and Orkney. There are a total of 26 inhabited islands with landscapes of the fertile agricultural islands of Orkney contrasting with the more rugged Shetland islands to the north, where the economy is more dependent on fishing and the oil wealth of the surrounding seas. Both have a developing renewable energy industry. They also share a common Pictish and Norse history. Both island groups were absorbed into the Kingdom of Scotland in the 15th century and remained part of the country following the formation of the Kingdom of Great Britain in 1707, and later the United Kingdom after 1801. The islands played a significant naval role during the world wars of the 20th century.  - Great Britain, also known as Britain , is a large island in the north Atlantic Ocean off the northwest coast of continental Europe. With an area of , Great Britain is the largest European island and the ninth-largest in the world. In 2011 the island had a population of about 61 million people, making it the world's third-most populous island after Java in Indonesia and Honshu in Japan. The island of Ireland is situated to the west of it, and together these islands, along with over 1,000 smaller surrounding islands, comprise the British Isles archipelago.  - A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases a river flows into the ground and becomes dry at the end of its course without reaching another body of water. Small rivers can be referred to using names such as stream, creek, brook, rivulet, and rill. There are no official definitions for the generic term river as applied to geographic features, although in some countries or communities a stream is defined by its size. Many names for small rivers are specific to geographic location; examples are "run" in some parts of the United States, "burn" in Scotland and northeast England, and "beck" in northern England. Sometimes a river is defined as being larger than a creek, but not always: the language is vague.    What entity does 'dumbarton' has the relation 'capital of' with?
Answer:
kingdom of strathclyde