Please answer the following question: Information: - Constantine IV (c. 652 14 September 685), sometimes incorrectly called "Pogonatos", "the Bearded", out of confusion with his father, was Byzantine Emperor from 668 to 685. His reign saw the first serious check to nearly 50 years of uninterrupted Islamic expansion, while his calling of the Sixth Ecumenical Council saw the end of the monothelitism controversy in the Byzantine Empire. - The First Bulgarian Empire (Old ) was a medieval Bulgarian state that existed in southeastern Europe between the 7th and 11th centuries AD. It was founded circa 681 when Bulgar tribes led by Asparukh moved to the northeastern Balkans. There they secured Byzantine recognition of their right to settle south of the Danube by defeating possibly with the help of local South Slavic tribes the Byzantine army led by Constantine IV. At the height of its power, Bulgaria spread from the Danube Bend to the Black Sea and from the Dnieper River to the Adriatic Sea. - The Byzantine Empire, also referred to as the Eastern Roman Empire, was the continuation of the Roman Empire in the East during Late Antiquity and the Middle Ages, when its capital city was Constantinople (modern-day Istanbul, which had been founded as Byzantium). It survived the fragmentation and fall of the Western Roman Empire in the 5th century AD and continued to exist for an additional thousand years until it fell to the Ottoman Turks in 1453. During most of its existence, the empire was the most powerful economic, cultural, and military force in Europe. Both "Byzantine Empire" and "Eastern Roman Empire" are historiographical terms created after the end of the realm; its citizens continued to refer to their empire as the "Roman Empire" (tr. ), or "Romania", and to themselves as "Romans". - An emperor (through Old French "empereor" from ) is a monarch, usually the sovereign ruler of an empire or another type of imperial realm. Empress, the female equivalent, may indicate an emperor's wife ("empress consort"), mother ("empress dowager"), or a woman who rules in her own right ("empress regnant"). Emperors are generally recognized to be of a higher honour and rank than kings. In Europe the title of Emperor was, since the Middle Ages, considered equal or almost equal in dignity to that of Pope, due to the latter's position as visible head of the Church and spiritual leader of Western Europe. The Emperor of Japan is the only currently reigning monarch whose title is translated into English as "Emperor". - Istanbul (or ), historically known as Constantinople and Byzantium, is the most populous city in Turkey and the country's economic, cultural, and historic center. Istanbul is a transcontinental city in Eurasia, straddling the Bosphorus strait (which separates Europe and Asia) between the Sea of Marmara and the Black Sea. Its commercial and historical center lies on the European side and about a third of its population lives on the Asian side. The city is the administrative center of the Istanbul Metropolitan Municipality (coterminous with Istanbul Province), both hosting a population of around 14.7 million residents. Istanbul is one of the world's most populous cities and ranks as the world's 7th-largest city proper and the largest European city. - The Adriatic Sea is a body of water separating the Italian Peninsula from the Balkan peninsula and the Apennine Mountains from the Dinaric Alps and adjacent ranges. The Adriatic is the northernmost arm of the Mediterranean Sea, extending from the Strait of Otranto (where it connects to the Ionian Sea) to the northwest and the Po Valley. The countries with coasts on the Adriatic are Albania, Bosnia and Herzegovina, Croatia, Greece, Italy, Montenegro and Slovenia. The Adriatic contains over 1,300 islands, mostly located along its eastern, Croatian, coast. It is divided into three basins, the northern being the shallowest and the southern being the deepest, with a maximum depth of . The Otranto Sill, an underwater ridge, is located at the border between the Adriatic and Ionian Seas. The prevailing currents flow counterclockwise from the Strait of Otranto, along the eastern coast and back to the strait along the western (Italian) coast. Tidal movements in the Adriatic are slight, although larger amplitudes are known to occur occasionally. The Adriatic's salinity is lower than the Mediterranean's because the Adriatic collects a third of the fresh water flowing into the Mediterranean, acting as a dilution basin. The surface water temperatures generally range from in summer to in winter, significantly moderating the Adriatic Basin's climate. - The pope (from "pappas", a child's word for "father") is the Bishop of Rome and, therefore, the leader of the worldwide Catholic Church. The primacy of the Roman bishop is largely derived from his role as the traditional successor to Saint Peter, to whom Jesus is supposed to have given the keys of Heaven and the powers of "binding and loosing", naming him as the "rock" upon which the church would be built. The current pope is Francis, who was elected on 13 March 2013, succeeding Benedict XVI. - Constantinople was the capital city of the Roman/Byzantine Empire (3301204 and 12611453), and also of the brief Latin (12041261), and the later Ottoman (14531923) empires. It was reinaugurated in 324 AD from ancient Byzantium as the new capital of the Roman Empire by Emperor Constantine the Great, after whom it was named, and dedicated on 11 May 330 AD. - The Roman Empire (Koine and Medieval Greek: , tr. ) was the post-Roman Republic period of the ancient Roman civilization, characterized by government headed by emperors and large territorial holdings around the Mediterranean Sea in Europe, Africa and Asia. The city of Rome was the largest city in the world BC AD, with Constantinople (New Rome) becoming the largest around 500 AD, and the Empire's populace grew to an estimated 50 to 90million inhabitants (roughly 20% of the world's population at the time). The 500-year-old republic which preceded it was severely destabilized in a series of civil wars and political conflict, during which Julius Caesar was appointed as perpetual dictator and then assassinated in 44 BC. Civil wars and executions continued, culminating in the victory of Octavian, Caesar's adopted son, over Mark Antony and Cleopatra at the Battle of Actium in 31 BC and the annexation of Egypt. Octavian's power was then unassailable and in 27 BC the Roman Senate formally granted him overarching power and the new title "Augustus", effectively marking the end of the Roman Republic. - The Macedonian dynasty ruled the Byzantine Empire from 867 to 1056, following the Amorian dynasty. During this period, the Byzantine state reached its greatest expanse since the Muslim conquests, and the Macedonian Renaissance in letters and arts began. The dynasty was named after its founder, Basil I the Macedonian who came from the Theme of Macedonia which at the time was part of Thrace. - Samuel ( also Samuil , representing Bulgarian , pronounced ( samuil ) ) was the Tsar ( Emperor ) of the First Bulgarian Empire from 997 to 6 October 1014 . From 977 to 997 , he was a general under Roman I of Bulgaria , the second surviving son of Emperor Peter I of Bulgaria , and co-ruled with him , as Roman bestowed upon him the command of the army and the effective royal authority . As Samuel struggled to preserve his country 's independence from the Byzantine Empire , his rule was characterized by constant warfare against the Byzantines and their equally ambitious ruler Basil II. In his early years Samuel managed to inflict several major defeats on the Byzantines and to launch offensive campaigns into their territory . In the late 10th century , the Bulgarian armies conquered the principality of Duklja and led campaigns against the Kingdoms of Croatia and Hungary . But from 1001 , he was forced mainly to defend the Empire against the superior Byzantine armies . Samuel died of a heart attack on 6 October 1014 , two months after the catastrophic battle of Kleidion . His successors failed to organize a resistance , and in 1018 , four years after Samuel 's death , the country capitulated , ending the five decades - long Byzantine -- Bulgarian conflict . Samuel was considered '' invincible in power and unsurpassable in strength '' . Similar comments were made even in Constantinople , where John Kyriotes penned a poem offering a punning comparison between the Bulgarian Emperor and Halley 's comet , which appeared in 989 . During Samuel 's reign , Bulgaria gained control of most of the Balkans ( with the notable exception of Thrace ) as far as southern Greece . He moved the capital from Skopje to Ohrid , which had been the cultural and military centre of southwestern Bulgaria since Boris I 's rule , and made the city the seat of the Bulgarian Patriarchate . Because of this , his realm is sometimes ( although misleadingly ) called the Western Bulgarian Empire . Samuel 's energetic reign restored Bulgarian might... - Late Antiquity is a periodization used by historians to describe the time of transition from classical antiquity to the Middle Ages in mainland Europe, the Mediterranean world, and the Middle East. The development of the periodization has generally been accredited to historian Peter Brown, after the publication of his seminal work "The World of Late Antiquity" (1971). Precise boundaries for the period are a continuing matter of debate, but Brown proposes a period between the 3rd and 8th centuries AD. Generally, it can be thought of as from the end of the Roman Empire's Crisis of the Third Century (c. 235 284) to, in the East, the early Islamic period (7th9th centuries), following the Muslim conquests in the mid7th century. In the West the end was earlier, with the start of the Early Medieval period typically placed in the 6th century, or earlier on the Western edges of the empire. - The Emperor of Japan is the head of the Imperial Family and is the ceremonial head of state of Japan's system of constitutional monarchy. According to the 1947 constitution, he is "the symbol of the State and of the unity of the people." Historically, he is also the highest authority of the Shinto religion as he and his family are said to be the direct descendants of the sun-goddess Amaterasu, and his importance also lies in dealing with heavenly affairs, including Shinto ritual and rites throughout the nation. - Petar I (died 30 January 970) was emperor (tsar) of Bulgaria from 27 May 927 to 969. - BasilII ("BasileiosII"; 958 15 December 1025) was a Byzantine Emperor from the Macedonian dynasty who reigned from 10 January 976 to 15 December 1025. He was known in his time as Basil the Porphyrogenitus and Basil the Young to distinguish him from his supposed ancestor, BasilI the Macedonian. Given the paragraphs above, decide what entity has the relation 'date of birth' with '958'.
Answer:
samuel of bulgaria