William I de Mauduit
William I was born before 1075.  He died in 1101 in Southamptonshire, England.

 UNKNOWN Hawyse
UNKNOWN was born before 1075.  She died after 1092.

 William II de Mauduit
William II was born about 1092 in Hanslape, Buckinghamshire, England.  He died about 1157.