[2] Ninian Stewart was created Hereditary Captain and Keeper of Rothesay Castle on Bute in 1498 by James IV of Scotland, an honour still held by the family today, and shown in their coat of arms.

[2] When Oliver Cromwell was victorious Sir James Stuart was forced to pay a substantial fine to redeem his estates that had been sequestrated.

[2] During the reign of Anne, Queen of Great Britain, James Stuart was made a Privy Councillor and a Commissioner for the negotiation of Treaty of Union.

[2] He was created 1st Earl of Bute on 14 April 1703, as well as 1st Viscount Kingarth and 1st Lord Mount Stuart, Cumra and Inchmarnock, all in the Peerage of Scotland.

[2] However, by 1706, the Earl was convinced that a union with England would not work and withdrew his support when he realised that Parliament would vote in favour of the alliance.

[2] John Crichton-Stuart, 2nd Marquess of Bute, was a noted Member of Parliament in the House of Commons and industrialist who is largely responsible for developing the docks in Cardiff to rival those in Liverpool.

[2] John Patrick Crichton-Stuart, 3rd Marquess of Bute, industrial magnate, antiquarian, scholar, philanthropist, and architectural patron, rebuilt Castell Coch and Cardiff Castle as tributes to the high art of the Middle Ages[2] and was created a Knight-Companion of the Most Ancient and Most Noble Order of the Thistle.

He was succeeded by his son, John Crichton-Stuart, 6th Marquess of Bute, who had a passion for Scottish heritage and received a Knight-Commander degree of the Most Excellent Order of the British Empire for his efforts before he died in 1993.