Known Children (3 Sons)
John De Courcy - Earl of Ulster
- Born before 1160
- Married Baron Simon De Montague
- Died between 1210 and 1219
- Known Children (3 Sons): Myles (Milo) De Courcy (Lord, 1st Baron of Kingsale), John De Courcy, Fergus De Courcy
Jordan Teutonicus De Courcy
- Born in 1161
- No (Known) Marriage
- Died in 1197 at age 36
- No (Known) Issue
- http://www.araltas.com/features/jordan/
- http://books.google.com/books?id=qFRmAAAAMAAJ&pg=PA245&lpg=PA245&dq=DeCourcy+family+motto&source=bl&ots=BxhjANIp2c&sig=3Y4137NipQ2DUJRLj8o1ebncZE0&hl=en&ei=hg-HSrr6AYjiMKuR2fsO&sa=X&oi=book_result&ct=result&resnum=2#v=onepage&q=&f=false
Lord William De Courcy
- Born in 1161
- No (Known) Marriage
- Died in 1197 at age 36
- No (Known) Issue
- Names of witnesses [to a charter?] in Pat. [Roll]. 42 Ed. III., part 2:--John de Courcy, conqueror of Ulster, and Affrica his wife; John de Courcy, nephew of the Lord Wm. de Courcy, brother of John de Courcy, conqueror of Ireland. MS 608, f. 73b [n.d.] (Source: http://nationalarchives.gov.uk)
Source: http://decourcy.net/