Margaret Arbuthnott Peerage person ID=17082 (d. 1677) Parents Robert Arbuthnot, 1st Viscount of Arbuthnott Lady Marjory Carnegie Children Sir William Forbes of Monymusk, 4th Bt. Jean Forbes Siblings Alexander Arbuthnot Robert Arbuthnott, 2nd Viscount of Arbuthnott unknown daughter Arbuthnott Partners Sir John Forbes of Monymusk, 3rd Bt.