Question: Information:  - Vatican City , officially Vatican City State or the State of Vatican City, is a walled enclave within the city of Rome. With an area of approximately 44 hectares (110 acres), and a population of 842, it is the smallest State in the world by both area and population, but formally it is not sovereign, sovereignty being held by the Holy See, the only entity of public international law that has diplomatic relations with almost every country in the world.  - Pope John X (died c. June 928) was Pope from March 914 to his death in 928. A candidate of the Counts of Tusculum, he attempted to unify Italy under the leadership of Berengar of Friuli, and was instrumental in the defeat of the Saracens at the Battle of Garigliano. He eventually fell out with Marozia, who had him deposed, imprisoned, and finally murdered. Johns pontificate occurred during the period known as the Saeculum obscurum.  - Alberic II ( 912 -- 954 ) was ruler of Rome from 932 to 954 , after deposing his mother Marozia and his stepfather , King Hugh of Italy . He was of the house of the Counts of Tusculum , the son of the notorious Marozia by her first husband , Alberic I , Duke of Spoleto . His half - brother was Pope John XI. At the wedding of his mother to King Hugh of Italy , Alberic and his new stepfather quarreled violently after Hugh slapped Alberic for clumsiness . Infuriated by this and perhaps motivated by rumors that Hugh intended to have him blinded , Alberic left the festivities and incited a Roman mob to revolt against Hugh . In December 932 Hugh fled the city , Marozia was cast into prison , and Alberic took control of Rome . In 936 Alberic married his stepsister Alda , the daughter of King Hugh , and had a son with her , Octavian . On his deathbed he nominated his son as Pope John XII.  - Pope Sergius III (c. 860  14 April 911) was Pope from 29 January 904 to his death in 911. He was pope during a period of feudal violence and disorder in central Italy, when warring aristocratic factions sought to use the material and military resources of the Papacy. Because Sergius III had reputedly ordered the murder of his two immediate predecessors, Leo V and Christopher, and was the only pope to have allegedly fathered an illegitimate son who later became pope (John XI), his pontificate has been variously described as "dismal and disgraceful", and "efficient and ruthless".  - Lazio (; ) is one of the 20 administrative regions of Italy, situated in the central peninsular section of the country. With almost 5.9 million residents and a GDP of more than 170 billion euros, Lazio is the second most populated region of Italy (having approximately the same in population as Campania), and has the second largest economy of the nation. Its capital is Rome, capital and largest city of Italy.  - Marozia, born Maria and also known as Mariuccia or Mariozza (890  937), was a Roman noblewoman who was the alleged mistress of Pope Sergius III and was given the unprecedented titles "senatrix" ("senatoress") and "patricia" of Rome by Pope John X.  - The European Union (EU) is a political and economic union of member states that are located primarily in Europe. It has an area of , and an estimated population of over 510 million. The EU has developed an internal single market through a standardised system of laws that apply in all member states. EU policies aim to ensure the free movement of people, goods, services, and capital within the internal market, enact legislation in justice and home affairs, and maintain common policies on trade, agriculture, fisheries, and regional development. Within the Schengen Area, passport controls have been abolished. A monetary union was established in 1999 and came into full force in 2002, and is composed of 19 EU member states which use the euro currency.  - Rome is a city and special "comune" (named "Roma Capitale") in Italy. Rome is the capital of Italy and of the Lazio region. With 2,870,336 residents in , it is also the country's largest and most populated "comune" and fourth-most populous city in the European Union by population within city limits. The Metropolitan City of Rome has a population of 4.3 million residents. The city is located in the central-western portion of the Italian Peninsula, within Lazio (Latium), along the shores of Tiber river. The Vatican City is an independent country geographically located within the city boundaries of Rome, the only existing example of a country within a city: for this reason Rome has been often defined as capital of two states.   - Italy, officially the Italian Republic, is a unitary parliamentary republic in Europe. Located in the heart of the Mediterranean Sea, Italy shares open land borders with France, Switzerland, Austria, Slovenia, San Marino and Vatican City. Italy covers an area of and has a largely temperate seasonal climate and Mediterranean climate; due to its shape, it is often referred to in Italy as "lo Stivale" (the Boot). With 61 million inhabitants, it is the fourth most populous EU member state.    Given the paragraphs above, decide what entity has the relation 'date of birth' with '911'.
Answer:
alberic ii of spoleto