Arnulf of Montgomery was born circa 1068 to Roger I de Montgommery (1020-1094) and Mabel de Bellême (1025-1082) and died circa 1120 of unspecified causes. He married Lavacroth Ua Briain . Charlemagne (747-814)/s.
Note that the existence of his two daughters is disputed.
|Offspring of Arnulf of Montgomery and Lavacroth Ua Briain|
|Alice of Montgomery (c1120-aft1175)||1120||1175||Maurice FitzGerald (c1105-1177)|
|Mary of Montgomery (c1110-aft1130)|