Gilbert de Lacy
Gilbert was born about 1104.  He died after 1163.

 UNKNOWN Agnes
UNKNOWN was born about 1108.

 Hugh de Lacy
Hugh was born after 1120 in Ewias Lacy, Herefordshire, England.  He died in July 1186 in Durrow, Ireland.

 Robert de Lacy
Robert was born after 1120.