Nom de famille "Grattan"
- Patrick (1630 - 1703), reverend, doctor in Divinity ✕ Grizell Brereton ( - 1726)
- Henry (1650 - 1726), high Sheriff of Cavan ✕ Bridget Flemyng (1662 - )
- James (1710 - 1766), Member of Parliament for the City of Dublin, recorder for the City of Dublin ✕ Mary Marlay (1724 - 1768)
- Mary (1748 - ) ✕ (1768) Gervase Parker Bushe ( - 1793), Member of Parliament for Kilkenny County, high Sheriff Kilkenny County
- James (1710 - 1766), Member of Parliament for the City of Dublin, recorder for the City of Dublin ✕ Mary Marlay (1724 - 1768)
- Henry (1650 - 1726), high Sheriff of Cavan ✕ Bridget Flemyng (1662 - )
Grattan
- Marguerite Jeanne (1686 - ) ✕ (1709) Philippe de Gentil de Langalerie (1661 - ), marquis de Langalerie, lieutenant-général des armées du Roi
Frère de Gratens (de)
- Henry (1746 - 1820), Member of Parliament for Charlemont, Member of Parliament for Dublin City ✕ (1782) Henrietta Fitzgerald (ca 1754 - 1838)
- Harriet (ca 1777 - 1865) ✕ (1836) Richard Wake (Richard William) (1775 - 1850), reverend, rector of Courteen Hall
Grattan
Frère de Gratens (de)
1 — Marguerite Jeanne (1686 - ) ✕ (1709) Philippe de Gentil de Langalerie (1661 - ), marquis de Langalerie, lieutenant-général des armées du Roi
Grattan
1 — Harriet (ca 1777 - 1865) ✕ (1836) Richard Wake (Richard William) (1775 - 1850), reverend, rector of Courteen Hall
2 — Henry (1746 - 1820), Member of Parliament for Charlemont, Member of Parliament for Dublin City ✕ (1782) Henrietta Fitzgerald (ca 1754 - 1838)
3 — Henry (1650 - 1726), high Sheriff of Cavan ✕ Bridget Flemyng (1662 - )
4 — James (1710 - 1766), Member of Parliament for the City of Dublin, recorder for the City of Dublin ✕ Mary Marlay (1724 - 1768)
5 — Mary (1748 - ) ✕ (1768) Gervase Parker Bushe ( - 1793), Member of Parliament for Kilkenny County, high Sheriff Kilkenny County
6 — Patrick (1630 - 1703), reverend, doctor in Divinity ✕ Grizell Brereton ( - 1726)