Family/Spouse: King Of England Æthelred II, The Unready. Æthelred (son of Edgar the Peaceful, King of England and Queen Alfgifu England, son of Edgar " the Peaceful ", King of the English and Queen Alfgifu England) was born on 19 Mar 968 in England; was christened in 978; died on 23 Apr 1016 in London, Middlesex, England; was buried in St Paul's Cathedral, London, England, United Kingdom. [Group Sheet] [Family Chart]