1. Roger Mortimer, 1st Baron WIGMORE has few details recorded about him.
Roger Mortimer, 1st Baron WIGMORE had the following children:
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2. Isabella de Mortimer, daughter of Roger Mortimer, 1st Baron WIGMORE, married John FitzAlan, 7th Earl of Arundel in 1260.
Arundel's titles also included Baron of Clun and Oswestry.
John FitzAlan, 7th Earl of Arundel, son of John FitzAlan, Lord Oswestry, Clun, and Arundel (1223-1267) and Maude le Botiller ( - ), was born on 14 September 1246. He died on 18 March 1272. He and Isabella de Mortimer had the following children:
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3. Richard FitzAlan, 8th Earl of Arundel, son of John FitzAlan, 7th Earl of Arundel and Isabella de Mortimer, was born on [Julian] 3 February 1266. He died on [Julian] 9 March 1301. He married Alasia of SALUZZO.
Richard was feudal Lord of Clun and Oswestry. After attaining his majority in 1289 became in fact Earl of Arundel, by being summoned to Parliament by a writ directed to the Earl of Arundel. He was knighted by King Edward I of England in 1289. He fought in the Welsh wars, 1288; in Gascony 1295-97; and in the Scottish wars, 1298-1300.
Alasia of SALUZZO (also known as Alice) was the daughter of Thomas I of SALUZZO ( - ). She and Richard FitzAlan, 8th Earl of Arundel had the following children:
| 5 | Edmund FitzAlan, 9th Earl of Arundel (1285-1326). Edmund was born on 1 May 1285. He died on 17 November 1326. |
4. Baroness Eleanor FITZALAN, daughter of John FitzAlan, 7th Earl of Arundel and Isabella de Mortimer, married Henry, 1st Lord Percy of Alnwick circa 1299 in Alnwick. She died in July 1328. She was buried in Beverley, Yorkshire.
Henry, 1st Lord Percy of Alnwick, son of Henry de Percy (c. 1235-1272) and Eleanor PLANTAGENET (c. 1244-aft1282), was born on 25 March 1273 in Petworth. He died on 2 October 1314 in Fountain's Abbey, Yorkshire. He and Eleanor FITZALAN had the following children:
| 6 | Henry, 2nd Lord Percy of Alnwick (1300- ). Henry, was born on [Julian] 6 February 1300 in Leconfield, Yorkshire. |