King John ("Lackland") I of England
John, known as "Lackland", was born on December 24th, 1167 in Beaumont Palace, Oxford, Oxfordshire, England.  He died at the age of 48 on October 18th, 1216 in Newark Castle, Nottinghamshire, England.  He was buried in Worcester Cathedral, Worcestershire, England.

 Agatha de Ferrers
Agatha was born about 1168 in Charltey, Staffordshire, England.

 Princess Joan of England
Joan was born about 1188 in London, Middlesex, England.  She died in February 1237 in Aberconwy, Arllechwedd Isaf, Caernarvonshire, Wales.  She was buried in Llan-faes, Dindaethwy, Anglesey, Wales.