Robert Arbuthnot, 1st Viscount of Arbuthnott Scottish Peer and Scottish Privy Counsellor (1618–1655) Parents Margaret Fraser Sir Robert Arbuthnott of that Ilk Children Margaret Arbuthnott Alexander Arbuthnot Robert Arbuthnott, 2nd Viscount of Arbuthnott unknown daughter Arbuthnott Siblings Patrick Haldane, 1st of Lanrick Mungo Haldane, 13th of Gleneagles Jane Arbuthnott Andrew Arbuthnot of Fiddes Margaret Arbuthnott Partners Catherine Fraser Lady Marjory Carnegie