Edmund (William) Deincourt

 Isabel De Mahon

 Maud Deincourt
Maud was born about 1268.¹ 

 Margaret Deincourt
Margaret was born about 1275 in Of, Blankney, Lincolnshire, England.¹   She died before October 1333 in Of Willoughby, D'eresby, Lincolnshire, England.¹