Joan of Bar was niece to a a King of England but in which year did he gain this title?
Edward II of England Edward II (25 April 1284 – 21 September 1327), also called Edward of Caernarfon, was King of England from 1307 until he was deposed in January 1327. The fourth son of Edward I, Edward became the heir to the throne following the death of his older brother Alphonso. Beginning in 1300, Edward accompanied his father on campaigns to pacify Scotland, and in 1306 he was knighted in a grand ceremony at Westminster Abbey. Edward succeeded to the throne in 1307, following his father's death. In 1308, he married Isabella of France, the daughter of the powerful King Philip IV, as part of a long-running effort to resolve the tensions between the English and French crowns.
Neville–Neville feud The Neville–Neville feud was an inheritance dispute which took place in the North of England during the early fifteenth century between two branches of the Neville family. After the death of Ralph Neville, 1st Earl of Westmorland in 1425, the feud continued through the 1430s, until 1443. It was caused by the transfer of lands and titles to the earl of Westmorland's second wife, Joan Beaufort, and her children. Many of the Neville family holdings were transferred through legal means to Joan's eldest son Richard Neville, 5th Earl of Salisbury, in effect disinheriting Westmorland's issue from his first wife. The title earl of Westmorland passed to the issue of Ralph's first marriage for legal reasons, but many holdings, particularly those of the Neville patrimony in Yorkshire and Raby Castle in Durham were transferred to Joan and her children. The Nevilles had many estates, but their main residence seems to have been Raby Castle. The House of Beaufort was able to consolidate their control over the County Palatine of Durham when Joan's youngest son, Robert Neville, assumed office as Bishop of Durham in 1437.