1171 - 1181 King Henry II, conquered Ulster and subdued the Ardes

1181 - 1200 John de Courcy, "the Conquerer of Ulster" a principle Retainer of Henry II, created Chief Governor of Ulster

1200 - 1205 King JOHN and John De Courcy had a falling out, King John Authorized Hugh De Lacie to wage war on De Courcy

1205 - 1264 Hugh De Lacie created Earl of Ulster and granted all the Lands of De Courcy

1264 - 1271 Walter De Burgh, acquired the Earldom by marring the Daughter of De Lacy

1271 - 1318 John Fitz Nicholas of Slanes, a principal retainer is the
First recorded holder of the manor

1318 - 1320 King Edward II

1320 - 1539 Prior of St. John of Jerusalem

1539 - 1547 King Henry VIII, closed (suppressed) all the
monastaries taking lands and possessions, by his Crown
Reformation

1547 - 1553 Edward VI

1553 - ? Sir Author Savage

pre - 1627 William Hamilton of Newcastle, purchased Slanes from Sir Author Savage

1627 - 1646 James Hamilton of Newcastle, killed at Battle of Benburb

1646 - 1709 James Hamilton of Bangor, confirmed in his ownership of Slanes by King James II, on his death the lands
( the moiety of the Great Ards ) passed to his two daughters

1709 - 1757 Micheal Ward, acqired lands by marrying the daughter Anna Catharine Hamilton

1759 - 1781 Bernard Ward, Baron Bangor & Viscount Bangor

1781 - 1827 Nicholas Ward, 2nd Viscount Bangor

1827 - 1837 Edward Ward (Southwell), 3rd Viscount Bangor

1837 - 1881 Edward Ward, 4rth Viscount Bangor

1881 - 1911 Henry William Crosbie Ward, 5the Viscount Bangor

1911 - 1950 Maxwell Richard Crosbie Ward, 6th Viscount Bangor

1950 - 1993 Edward Henry Harold Ward, 7th Viscount Bangor

1993 - 2001 William Maxwell David Ward, 8th Viscount Bangor

2001 - present Ronald Claude Bridges, present Lord of Slanes