Roger Mortimer, 3rd Baron Mortimer of Wigmore, 1st Earl of March (25 April 1287 – 29 November 1330), was an English nobleman and powerful Marcher Lord who gained many estates in the Welsh Marches and Ireland following his advantageous marriage to the wealthy heiress Joan de Geneville, 2nd Baroness Geneville.
Sir Roger de Mortimer, 2nd Earl of March, 4th Baron Mortimer of Wigmore, KG (11 November 1328 – 26 February 1360) was an English nobleman and military commander during the Hundred Years' War. He was the son of Sir Edmund Mortimer (d. 1331) and Elizabeth de Badlesmere , and grandson of Roger Mortimer, 1st Earl of March .
Roger Mortimer, Earl of March 1374–1398 Quarterly, 1st and 4th, Barry of six, Or and Azure, on a chief two pales, the corners gyronny, overall an escutcheon Argent (Mortimer), 2nd and 3rd Or, a cross Gules (de Burgh) 
Apr 26, 2022 · Had issue, including Roger Mortimer, 1st Earl of March 3. Isabella Mortimer, (c. 1248 - 1292). She married first 1260 John Fitzalan, 7th Earl of Arundel, (14 sep 1246 - 18 mar 1272) . married second Robert de Hastings 4. Margaret Mortimer, died 1297. She married Robert de Vere, 6th Earl of Oxford 5. Roger de Mortimer was born about 1256, lived ...
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
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However, her presence in France became a focal point for the many nobles opposed to Edward's reign. Isabella gathered an army to oppose Edward, in alliance with Roger Mortimer, 1st Earl of March, whom she may have taken as a lover. Isabella and Mortimer returned to England with a mercenary army, seizing the country in a lightning campaign.