Early life. Roger Mortimer was born 11 April 1374 at Usk in Monmouthshire. He was the eldest son of Edmund Mortimer, 3rd Earl of March, by his wife Philippa of Clarence, who was the daughter of Lionel of Antwerp, 1st Duke of Clarence, and granddaughter of King Edward III.
Joan de Geneville, 2nd Baroness Geneville, Countess of March, Baroness Mortimer (2 February 1286 – 19 October 1356), also known as Jeanne de Joinville, was the daughter of Sir Piers de Geneville and Joan of Lusignan. She inherited the estates of her grandparents, Geoffrey de Geneville, 1st Baron Geneville, and Maud de Lacy, Baroness Geneville.
Edmund Fitzalan, 2nd Earl of Arundel (1 May 1285 – 17 November 1326) was an English nobleman prominent in the conflict between King Edward II and his barons. His father, Richard Fitzalan, 1st Earl of Arundel , died in 1302, while Edmund was still a minor.
Henry IV of England heard of a Welsh uprising at Leicester, Henry's army wandered North Wales to Anglesey, and drove out Franciscan friars who favoured Richard II, all the while Glyndŵr who was in hiding had his estate forfeited to John Beaufort, 1st Earl of Somerset. Glyndŵr had been offered a pardon on 10 March 1401 but rejected the plea.
Elizabeth Mortimer: Roger Mortimer: Owen Tudor: Catherine of Valois: Henry V Duke of Lancaster, Prince of Wales, King of England r. 1413–1422: Humphrey Duke of Gloucester: Edward of Norwich Duke of York: Richard of Conisburgh: Anne de Mortimer: John Beaufort 1st Duke of Somerset: Margaret of Anjou: Henry VI King of England r. 1422–1461, r ...
Earls of Clarence (1881) The Prince Leopold, 1st Duke of Albany, 1st Earl of Clarence & 1st Baron Arklow (1853–1884), fourth son of Queen Victoria.; Charles Edward, Duke of Saxe-Coburg and Gotha, 2nd Duke of Albany, 2nd Earl of Clarence & 2nd Baron Arklow (1884–1954), posthumous son of the 1st Earl, had his British titles suspended in 1919 for waging war against Britain.