Cine s-a căsătorit cu Joan Beaufort, Countess of Westmorland?

Joan Beaufort (c. 1379 – 13 November 1440) was the youngest of the four legitimised children and only daughter of John of Gaunt, 1st Duke of Lancaster (third surviving son of King Edward III), by his mistress, later wife, Katherine de Roet. Joan married Ralph de Neville, 1st Earl of Westmorland and in her widowhood became a powerful landowner in the north of England, as countess of Westmorland. Joan was grandmother to kings Edward IV and Richard III, and great-great grandmother to Henry VIII.

Ralph Neville, 1st Earl of Westmorland Earl Marshal (c. 1364 – 21 October 1425), was an English nobleman of the House of Neville. Elevated to the earldom by Richard II, he later supported his brother-in-law Henry of Lancaster in deposing the king and became a key supporter of the Lancastrian dynasty. As a royal kinsman through his marriage to Joan Beaufort, he was rewarded with high offices, including Earl Marshal, and played a central role in northern politics and border warfare with Scotland.

Robert Ferrers of Wem (c. 1373 – bef. 29 November 1396) was an English aristocrat who married Joan Beaufort, the daughter of Prince John of Gaunt. He was born in Willisham, Suffolk.

Robert was the son of Baron Sir Robert Ferrers of Wem and Elizabeth Boteler, 4th Baroness Boteler of Wem, who died in June 1411, and paternal grandson of Robert de Ferrers, 3rd Baron Ferrers of Chartley Castle.

His father had been summoned to Parliament in 1375 as Robert Ferrers of Wem. Under modern peerage doctrine the manner in which he was named in this summons would be viewed as creating a novel peerage, the Barons Ferrers of Wem, to which his son Robert, who was never himself summoned, would be viewed to have succeeded as 2nd Baron on his father's death in 1380.

However, in Complete Peerage, Vicary Gibbs argues that contemporary practice was not so regimented as it would become, and that the elder Robert had clearly been summoned simply as possessor, jure uxoris, of the same barony previously held by his father-in-law William, Baron Boteler of Wem. His mother's 3rd husband, Sir Thomas Molinton, would in turn in his will style himself 'Lord of Wemme', jure uxoris, though he was never summoned. Were it the case that his father was summoned only jure uxoris, then Elizabeth's son Robert Ferrers, who was never himself summoned, would not have been a peer as he predeceased his mother.

Following this Robert's death in 1396 and of his mother in 1411, the Barony Boteler of Wem and any Barony Ferrers that might be held to have been created by the 1375 summons would have gone into abeyance between his two daughters.