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
Church of St Edward King and Martyr, Goathurst Church of St Edward King and Martyr, Goathurst The Church of St Edward King and Martyr in Goathurst, Somerset, England dates from the 14th century and has been designated as a Grade I listed building. The parish was originally part of the Royal Forest of North Petherton and its first squire owned St Edward's church. The dedication to Edward the Martyr is unusual, Edward was a young Saxon king who was murdered by his stepmother Elfrida in 978 at Corfe Castle in Dorset so that her own son would become king. The church includes a 19th-century monument to three-year-old Isabella