Mary Forbes, Countess of Granard

British noblewoman (1670–1765)

Parents

• William Stewart, 1st Viscount Mountjoy
• Mary Stewart, Viscountess Mountjoy

Children

• Nathaniel Preston
• Mary Preston
• Lady Mary Forbes
• Jane Preston
• Mary Preston
• George Forbes, 4th Earl of Granard
• John Preston
• John Forbes

Siblings

• William Stewart, 2nd Viscount Mountjoy
• Catherine Stewart
• Charles Stewart
• Alexander Stewart

Partners

• George Forbes, 3rd Earl of Granard
• Phineas Preston