Edmund Mortimer's son Roger Mortimer, 4th Earl of March would become heir presumptive to the English crown during the reign of Richard II. Political advancement. Mortimer, now styled Earl of March and Ulster, became Marshal of England in 1369, and was
Edmund Mortimer, 5th Earl of March, 7th Earl of Ulster (6 November 1391 – 18 January 1425), was an English nobleman and a potential claimant to the throne of England. A great-great-grandson of King Edward III of England , he was heir presumptive to King Richard II of England (both his paternal first cousin twice removed and maternal half grand-uncle) when he was deposed in favour of Henry IV .
26/04/2022 · Roger de Mortimer, 8th Baron of Wigmore, 3rd Baron Mortimer and 1st Earl of March (born 1287? - died 29 November 1330, Tyburn, near London, England) lover of Isabella, the wife of Edward II of England: they invaded England in 1326 and compelled the king to abdicate in favour of his son, Edward III; executed. comments
26/04/2022 · "Richard Plantagenet, 3rd Duke of York, 6th Earl of March, 4th Earl of Cambridge, and 7th Earl of Ulster, conventionally called Richard of York (21 September 1411 – 30 December 1460) was a leading English magnate, great-grandson of King Edward III.