Sir Reynold de Mohun
Sir Reynold was born in 1183 in Dunster, Somerset, England.  He died at the age of 30 in 1213.

 Alice de Briwere
Alice was born about 1183 in Stoke, Devonshire, England.  She died after 1233.

 Sir Reynold II de Mohun
Sir Reynold II was born about 1206 in Dunster, Somerset, England.