Piers fitz Herbert
Piers fitz was born in 1160 in Brecknockshire, Wales.  He died at the age of 75 on June 6th, 1235.

 Alice FitzRobert De Lacy
Alice FitzRobert was born about 1191 in Warkworth, Northumberland, England.  She died before 1225.

 Joan Fitz-Piers
Joan was born about 1178 in Brecknockshire, Wales.

 Lucia Fitz Piers
Lucia Fitz was born about 1205 in Brecknockshire, Wales.  She died after 1265.

 Reynald Fitz Piers
Reynald Fitz was born about 1208 in Brecknockshire, Wales.