William deWilloughby
William was born in 1248 in Willoughby, Lincolnshireoln, England.  William is no longer alive.

 Margaret deDeincourt
Margaret was born in 1256 in Blankney, Lincolnshire, England.

 Thomas deWilloughby
Thomas was born in 1274 in Willoughby, Lincolnshireoln, England.