Mathew de Holland
Mathew was born in 1171 in Upholand, Lancashire, England.  He died at the age of 31 in 1202 in Upholand, Lancashire, England.

 Margaret de Harcourt
Margaret was born in 1165.

 Robert de Holland
Robert was born about 1197 in Upholand, Lancashire, England.  He died after 1242.