Archibald George Montgomerie, 18th Earl of Eglinton and 6th Earl of Winton (27 August 1939 – 14 June 2018),[1] styled Lord Montgomerie until 1966, was the son of Archibald William Alexander Montgomerie, 17th Earl of Eglinton, and Ursula Joan Watson.

He joined the stockbrokers Grieveson Grant, where he became senior dealer in the fixed interest market, with a focus on short-dated gilts, and by the age of 24 was a partner in the firm, remaining in post from 1957 to 1972.

He then joined another firm, Gerrard and National, as managing director, and was also deputy chairman by 1980.

They have four sons: The Countess is a Patroness of the Royal Caledonian Ball.

[3] The family seat is at Balhomie House, near Cargill, in Perthshire.