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? 
English claims to the French throne:  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 III of England: 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.
i don't know