Robert+ Saint John
Robert+ was born about 1202 in Portchester Castle, Hampshire, England.  He died in London, Middlesex, England.

 Agnes+ Cantilupe
Agnes+ was born in 1202 in Kenilworth Castle, Warshire, England; alternate POB given.  She died after 1279.

 Jane+ Saint John
Jane+ was born about 1220 in Basing, Hampshire, England.

 William+ Saint John
William+ was born in 1234.

 John+ Saint John
John+ was born after 1240.