Robert FitzHamon Lord of Glamorgan, Lord of Gloucester

  General Notes:

ROBERT FitzHamon (-Newbury Mar 1107). Lord of Glamorgan. Lord of Gloucester. The Chronica de Fundatoribus et Fundatione of Tewkesbury Abbey records that William II King of England granted the honor of Gloucester to "Robertum filium Haymonis, dominum de Astramervilla in Normannia". "…Rodberti Haimonis filii…" subscribed a charter dated 14 Sep 1101 under which Henry I King of England donated property to Bath St Peter. "…Robertus filius Hamonis et Hamon frater eius…" witnessed the charter dated 13 Jan 1103 which records an agreement between "Philippus de Braosa" and the abbey of Fécamp. The Chronica de Fundatoribus et Fundatione of Tewkesbury Abbey records the death "Marcii 1107" of "Robertum filium Haymonis". The Annals of Margan record that "Robertus filius Hamonis" died in 1107. The Gwentian Chronicle records that "Robert Fitzhamon died in his castle at Newbury, raving mad" in 1110.

m as her first husband, SIBYLLE de Montgommery, daughter of ROGER Sire de Montgommery, Vicomte d'Hiémois [later Earl of Shrewsbury] & his first wife Mabel d'Alençon. Guillaume de Jumièges names (in order) "Robert et Hugues, Roger le Poitevin, Philippe et Arnoul, et les filles Emma, Mathilde, Mabille et Sibylle" as the five sons and four daughters of "Roger de Montgomeri" & his wife Mabile. She is named and her parentage given by Orderic Vitalis, who lists her fourth among her father's daughters by his first marriage and also names her first husband. The Chronica de Fundatoribus et Fundatione of Tewkesbury Abbey records that "Robertum filium Haymonis, dominum de Astramervilla in Normannia" married "Sibillam sororem Roberti de Belismo, comitis Salopiæ". She married secondly Jean Sire de Raimes. The primary source which confirms her second marriage has not yet been identified.

Robert & his wife had four children: Mabel, Hawise, Cecile and Amice.

Robert married Sibylle de Montgommery, daughter of Roger [II] de Montgommery Seigneur de Montgommery, Vicomte de l'Hiémois and Mabile de Bellême.