Question: What is the birthdate of this King of England, noted for his military success and for restoring royal authority after a disastrous reign, who claimed the French throne in 1340? 

Levan (Georgian: ლევანი ) (1573–1590), of the Bagrationi Dynasty, was a king of Imereti from 1585 to 1588.  He succeeded on the death of his father, George II, in 1585 when he was twelve years old.  With his ascend to the throne, Leon faced a revolt by his own uncle, Constantine, who defied the royal authority and took control of Upper Imereti.  Leon made an alliance with the Mingrelian prince Mamia IV Dadiani, married his sister Marekhi, and forced Constantine to surrender in 1587.  A year later, Imereti was invaded by Simon I, the resurgent king of Kartli in eastern Georgia, who sought to reunify all Georgian lands under his crown.  Leon was forced to flee to the highland province of Lechkhumi, but was soon able to resume the throne after Simon had to return to Kartli.  However, Leon soon quarreled with his brother-in-law Mamia IV Dadiani who defeated the king and imprisoned him at Fort Shkheti, Mingrelia, where he died in 1590. <SEP>  Edward III transformed the Kingdom of England into one of the most formidable military powers in Europe. Edward III (13 November 1312 – 21 June 1377) was King of England from 25 January 1327 until his death; he is noted for his military success and for restoring royal authority after the disastrous and unorthodox reign of his father, Edward II.  His long reign of 50 years was the second longest in medieval England and saw vital developments in legislation and government—in particular the evolution of the English parliament—as well as the ravages of the Black Death. <SEP>  The claim dates from Edward III, who claimed the French throne in 1340 as the sororal nephew of the last direct Capetian, Charles IV.  Edward and his heirs fought the Hundred Years War to enforce this claim, and were briefly successful in the 1420s under Henry V and Henry VI, but the House of Valois, a cadet branch of the Capetian dynasty, was ultimately victorious and retained control of France. From the 1340s to the 19th century, excluding two brief intervals in the 1360s and the 1420s, the kings and queens of England (and, later, of Great Britain) also claimed the throne of France.  Despite this, English and British monarchs continued to prominently call themselves kings of France, and the French fleur-de-lys were included in the royal arms.  This continued until 1801, by which time France had no monarch, having become a republic.  The Jacobite claimants, however, did not explicitly relinquish the claim. <SEP> The Constitutions of Clarendon were a set of legislative procedures passed by Henry II of England in 1164.  The Constitutions were composed of 16 articles and represent an attempt to restrict ecclesiastical privileges and curb the power of the Church courts and the extent of Papal authority in England.  In the anarchic conditions of Henry II's predecessor, Stephen, the church had extended its jurisdiction by taking advantage of the weakness of royal authority.  The Constitutions were claimed to restore the judicial customs observed during the reign of Henry I (1100–35), while in fact they were a part of Henry II's larger expansion of royal jurisdiction into the Church and civil law, which was a defining aspect of his reign.