Information:  - Saxe-Weissenfels was a duchy of the Holy Roman Empire from 1656/7 until 1746 with its residence at Weißenfels. Ruled by a cadet branch of the Albertine House of Wettin, the duchy passed to the Electorate of Saxony upon the extinction of the line.  - Christian , Duke of Saxe - Weissenfels ( Weissenfels , 23 February 1682 -- Sangerhausen , 28 June 1736 ) , was a duke of Saxe - Weissenfels - Querfurt and member of the House of Wettin . He was the sixth ( but second surviving ) son of Johann Adolf I , Duke of Saxe - Weissenfels , and Johanna Magdalena of Saxe - Altenburg .  - A duke (male) (British English: or American English: ) or duchess (female) can either be a monarch ruling over a duchy or a member of the nobility, historically of highest rank below the monarch. The title comes from French "duc", itself from the Latin "dux", 'leader', a term used in republican Rome to refer to a military commander without an official rank (particularly one of Germanic or Celtic origin), and later coming to mean the leading military commander of a province.  - The Harz is the highest mountain range in Northern Germany and its rugged terrain extends across parts of Lower Saxony, Saxony-Anhalt, and Thuringia. The name "Harz" derives from the Middle High German word "Hardt" or "Hart" (mountain forest), Latinized as "Hercynia". The legendary Brocken is the highest summit in the Harz with a height of above sea level. The Wurmberg is the highest peak located entirely within Lower Saxony.  - Saxony-Anhalt is a landlocked federal state of Germany surrounded by the federal states of Lower Saxony, Brandenburg, Saxony and Thuringia.  - Nordhausen is a city in Thuringia, Germany. It is the capital of the Nordhausen district and the urban centre of northern Thuringia and the southern Harz region; its population is 42,000. Nordhausen is located approximately N of Erfurt, W of Halle, S of Braunschweig and E of Göttingen.  - Meissen (in German orthography: "Meißen") is a town of approximately 30,000 about northwest of Dresden on both banks of the Elbe river in the Free State of Saxony, in eastern Germany. Meissen is the home of Meissen porcelain, the Albrechtsburg castle, the Gothic Meissen Cathedral and the Meissen Frauenkirche. The "Große Kreisstadt" is the capital of the Meissen district.  - Wettin is a small town and a former municipality in the Saalekreis district of Saxony-Anhalt, Germany, situated on the River Saale north of Halle. Since 1 January 2011, it is part of the town Löbejün-Wettin. It is known for Wettin Castle, the ancestral seat of the House of Wettin, ruling dynasty of Saxony and Poland. Wettin sights include the Tower of Bismarck, the town hall, and the castle (used as the Burggymnasium).  - Count (male) or countess (female) is a title in European countries for a noble of varying status, but historically deemed to convey an approximate rank intermediate between the highest and lowest titles of nobility. The word "count" came into English from the French "comte", itself from Latin "comes"in its accusative "comitem"meaning companion, and later companion of the emperor, delegate of the emperor. The adjective form of the word is "". The British and Irish equivalent is an earl (whose wife is a "countess", for lack of an English term). Alternative names for the "count" rank in the nobility structure are used in other countries, such as "Graf" in Germany and "Hakushaku" during the Japanese Imperial era.  - The Free State of Thuringia is a federal state in central Germany. It has an area of and 2.29 million inhabitants, making it the sixth smallest by area and the fifth smallest by population of Germany's sixteen states. Most of Thuringia is within the watershed of the Saale, a left tributary of the Elbe. The capital is .  - The Holy Roman Empire was a multi-ethnic complex of territories in central Europe that developed during the Early Middle Ages and continued until its dissolution in 1806. The largest territory of the empire after 962 was the Kingdom of Germany, though it also came to include the Kingdom of Bohemia, the Kingdom of Burgundy, the Kingdom of Italy, and numerous other territories.  - The House of Wettin is a dynasty of German counts, dukes, prince-electors and kings that once ruled territories in the present-day German states of Saxony and Thuringia. The dynasty is one of the oldest in Europe, and its origins can be traced back to the town of Wettin, Saxony-Anhalt. The Wettins gradually rose to power within the Holy Roman Empire. Members of the family became the rulers of several medieval states, starting with the Saxon Eastern March in 1030. Other states they gained were Meissen in 1089, Thuringia in 1263, and Saxony in 1423.  - The prince-electors (or simply electors) of the Holy Roman Empire ((), pl. "Kurfürsten", ) were the members of the electoral college of the Holy Roman Empire.  - The Electorate of Saxony (also '), sometimes referred to as Upper Saxony, was a State of the Holy Roman Empire established when Emperor Charles IV raised the Ascanian duchy of Saxe-Wittenberg to the status of an Electorate by the Golden Bull of 1356. Upon the extinction of the House of Ascania, it was enfeoffed to the Margraves of Meissen from the Wettin dynasty in 1423, who moved the residence up the Elbe river to Dresden. After the Empire's dissolution in 1806, the Wettin electors raised Saxony to a kingdom.  - A duchy is a country, territory, fief, or domain ruled by a duke or duchess. The term is used almost exclusively in Europe, where in the present day there is no sovereign duchy (i.e. with the status of a nation state) left.   - Halle (Saale) is a city in the southern part of the German state Saxony-Anhalt.  - The Free State of Saxony is a landlocked federal state of Germany, bordering the federal states of Brandenburg, Saxony Anhalt, Thuringia, and Bavaria, as well as the countries of Poland (Lower Silesian and Lubusz Voivodeships) and the Czech Republic (Karlovy Vary, Liberec and Ústí nad Labem Regions). Its capital is Dresden, and its largest city is Leipzig.  - The Saxon Eastern March was a march of the Holy Roman Empire from the 10th until the 12th century. The term "eastern march" or "ostmark" comes from the Latin term "marchia Orientalis" and originally could refer to either a march created on the eastern frontier of the Duchy of Saxony or another on the eastern border of the Duchy of Bavaria: the Bavarian Eastern March, corresponding to later Austria.   - Germany, officially the Federal Republic of Germany, is a federal parliamentary republic in central-western Europe. It includes 16 constituent states, covers an area of , and has a largely temperate seasonal climate. With about 82 million inhabitants, Germany is the most populous member state of the European Union. After the United States, it is the second most popular immigration destination in the world. Germany's capital and largest metropolis is Berlin. Other major cities include Hamburg, Munich, Cologne, Frankfurt, Stuttgart and Düsseldorf.  - Weißenfels (often written in English as Weissenfels) is the largest town of the Burgenlandkreis district, in southern Saxony-Anhalt, Germany. It is situated on the river Saale, approximately south of Halle.  - Sangerhausen is a town in Saxony-Anhalt, Germany, capital of the district of Mansfeld-Südharz, without being part of it. It is situated southeast of the Harz, approx. east of Nordhausen, and west of Halle (Saale). About 31,000 people live in Sangerhausen.    What entity does 'christian' has the relation 'place of birth' with?
Answer:
weißenfels