JD
John de Warenne 6th Earl of Surrey
Vitals
Family
Spouse
Children
About
John de Warenne, 6th Earl of Surrey (c.1231-1304), the earl of the 'quo warranto' legend who is said to have produced a rusty sword as his title-deed; fought at Lewes and Falkirk. Father of William (d.1286).
Research notes
✓ DOCUMENTED (web-confirmed 24 Aug 2026): m. 1247 Alice de Lusignan. ASCENT WIRED 24 Aug 2026 against CP1 SURREY (supplied by Aynsley): son of William 5th Earl x MAUD MARSHAL (I100085, the eldest Marshal coheir, already ours by her Bigod bed) - THE TWO WARENNE CLUSTERS ARE NOW JOINED via his grandfather Hamelin Plantagenet x Countess Isabel and great-grandfather the crusader 3rd Earl, son of the existing F99838. Added 24 Aug 2026.