Isabella of Lusignan her half-brother King Henry III in 1254. After thirteen years of marriage Geoffery died. Isabella herself died on 14 January 1300 having most likely outlived all of her children. She had several grandchildren. Isabella also outlived all of her siblings (full and half). Isabella of Lusignan Isabella of Lusignan (c.1224 – 14 January 1300) was a daughter of Hugh X of Lusignan and his wife Isabella of Angoulême, Dowager Queen of England. Isabella was half-sister to King Henry III of England. She was Dame de Beauvoir-sur Mer et de Mercillac. Isabella's year of birth is unknown. She is mentioned in
Isabella, Countess of Gloucester Isabella, Countess of Gloucester Isabella, Countess of Gloucester (c. 1173 – 14 October 1217), was an English noblewoman who was married to King John prior to his accession. Isabella was the daughter of William Fitz Robert, 2nd Earl of Gloucester, and his wife Hawise. Her paternal grandfather, Robert, 1st Earl of Gloucester, was the illegitimate son of King Henry I. Her father died in 1183, at which time she became Countess of Gloucester "suo jure". On 28 September 1176, King Henry II betrothed Isabella to his youngest son, John Lackland. John and Isabella were half-second cousins as great-grandchildren of Henry