Joan of Bar was niece to a a King of England but in which year did he gain this title?
Joan of Bar, Countess of Surrey Joan of Bar (died in 1361, London) was a daughter of Henry III, Count of Bar and Princess Eleanor of England, and niece of Edward II of England. She was unhappily married to John de Warenne, 7th Earl of Surrey. In 1345, Joan became the regent of Bar for her great-nephew Robert.
Edmund I Edmund I (Old English: "Ēadmund" , pronounced ; 921 – 26 May 946), called "the Elder", "the Deed-doer", "the Just", or "the Magnificent", was King of the English from 939 until his death. He was a son of Edward the Elder and half-brother of Æthelstan. Æthelstan died on 27 October 939, and Edmund succeeded him as king.