Gilbert De Lacy
Gilbert was born in 1206 in Dublin, Ireland.  He died at the age of 34 in 1240 in Trim Castle, co. Meath, Ireland.

 Isabel Bigod
Isabel was born about 1222 in Norfolk, England.  She died after 1259.

 Margery (Margaret) de Lacy
Margery (Margaret) was born about 1223 in Dublin, Ireland.  She died in 1256.

 Maud de Lacy
Maud was born about 1232 in Dublin, Ireland.