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
John, King of England to emerge during the Tudor period, mirroring the revisionist histories of the time. The anonymous play "The Troublesome Reign of King John" portrayed the king as a "proto-Protestant martyr", similar to that shown in John Bale's morality play "Kynge Johan", in which John attempts to save England from the "evil agents of the Roman Church". By contrast, Shakespeare's "King John", a relatively anti-Catholic play that draws on "The Troublesome Reign" for its source material, offers a more "balanced, dual view of a complex monarch as both a proto-Protestant victim of Rome's machinations and as a weak, selfishly motivated ruler". Anthony