John I "Lackland" Plantagenet King of England
John I "Lackland" Plantagenet King of was born on December 24th, 1166 in Kings Manor House, Oxford, Oxfordshire, England.  He died at the age of 49 on October 19th, 1216 in Newark Castle, Nottinghamshire, England.  He was buried in Cathedral, Worcester, Worcestershire, England.

 Agatha de Ferrers
Agatha de was born in 1168 in Ferrers, Derbyshire, England.  Agatha de is no longer alive.

 Joan Plantagenet
Joan was born on July 22nd, 1190 in Newark Castle, Nottinghamshire, England.  She died after March 30th, 1236 in Court of Aberconway, North Wales.