Known Children (4 Sons, 1 Daughter)
Lord Gerald De Courcy - 19th (14th) Baron of Kinsale
- Unknown birth date
- Married Helen FitzGerald, daughter of Sir John Fitzgerald (or Dromana) and Ellen Fitz Gibbon (second wife)
- Died in 1642
- Known Children (1 Daughter): Mary De Courcy
- No male issue; title passes to his brother Patrick
Edmund De Courcy
- Unknown birth date
- Unknown marriage (if any)
- Unknown death date
- No (known) issue
Lord Patrick De Courcy - 20th (15th) Baron of Kinsale
- Unknown birth date
- Married Mary FitzGerald, daughter of Sir John FitzGerald (or Dromana) and unknown birth mother (first wife), sister (or half-sister) of Helen (wife of brother Gerald)
- Died in 1663
- Known Children (4 sons, 1 daughter): John De Courcy, Miles De Courcy, Edmund De Courcy, Gerald De Courcy, Margaret De Courcy
- Title passes to his oldest son John
David De Courcy
- Unknown birth date
- Married [Unknown} Roche, daughter of William Roche and unknown birth mother
- Possibly the son of Lord John De Courcy and his first wife Catherine Cogan (see http://thepeerage.com/p29960.htm#i299597)
- Unknown death date
- Known Children (1 son): Anthony De Courcy of Bandon, County Cork
Ellen De Courcy
- Born in 1561
- Married Randal Oge Dubh2 O'Hurley (Randal I) in 1587
- Unknown death date
- No (known) issue
Source: http://decourcy.net