John de Muscegros
John was born on August 10th, 1232 in Charlton,England.  He died at the age of 42 on May 8th, 1275.

 Cecily Avenal
Cecily was born about 1232.  She died on August 10th, 1301.

 Robert de Muscegros
Robert was born about 1252 in Charlton,England.  He died on December 27th, 1280.