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.
King of Wales King of Wales was a very rarely used title, because Wales, much like Ireland, never achieved a degree of political unity, like that of England or Scotland during the Middle Ages. While many different leaders in Wales claimed the title of 'King of Wales', the country was only truly united once: under the rule of Gruffydd ap Llywelyn from 1055 to 1063.