Baron William de Ros V
Baron William was born in 1182 in Helmsley, Tork, Eng.  He died at the age of 82 in 1264.

 Lucy Fitz Piers
Lucy was born in 1210 in Bricknock, Wales.

 Baron  William de Ros VI
Baron  William was born in 1242 in Ingmanthorp, Eng.  He died at the age of 68 in 1310.