Robert Mauduit
Robert was born about 1172 in Hanslope, Buckingham, England.  He died in June 1221.

 Isabel Basset
Isabel was born about 1176 in Chapham, Bedford, England.  She died in 1224.

 Sir. William Mauduit , Earl of Warwick
William was born about 1196 in of Hanslope, Buckshire, England.  He died in April 1257.