[3] In 1296 John de Montgomery and his brother are recorded on the Ragman Rolls rendering homage to Edward I of England.

In April 1586, Hugh Montgomery, 4th Earl of Eglinton, aged twenty-four, was travelling to Stirling to join the Court having been commanded to attend by the King, accompanied only by a few domestic servants.

[8] It seems that a plot to kill the Earl had been organised and the Lady, or some say a servant girl who was also a Cunningham,[7] climbed to the battlements after the meal to hang out a white table napkin and thereby sprung the trap.

Robert also killed the Earl of Glencairn's brother the Commendator of Kilwinning Abbey, Alexander of Montgreenan, thought to have instigated Hugh's murder.

[10] The government of King James VI of Scotland eventually managed to make the chiefs of the two clans shake hands.

[6] The Earl was declared guilty of treason and imprisoned in Doune Castle but was later released upon accepting James VI.

Two years later, chief Archibald MacAlister along with Angus Og MacDonald carried out a similar attack on the inhabitants of the Isle of Bute against the Clan Stuart.

A year afterwards Archibald MacAlister and Angus Og MacDonald were accused of being rebels, charged with treason and hanged in Edinburgh Tollbooth.

When the second Earl of Eglintoun, chief of Clan Montgomery was released after the battle of Langside he had tried to secure the safety and toleration of Catholics in the wake of the Reformation.

The clan chief and 9th Earl of Eglinton was on the Privy Council of King William and Queen Anne of the United Kingdom.

During the American Revolutionary War, General Richard Montgomery fought for the Continental Army, leading part of the Invasion of Quebec.

During the Western Desert campaign of the Second World War, Montgomery commanded the British Eighth Army from August 1942, through the Second Battle of El Alamein and on to the final Allied victory in Tunisia in May 1943.

By the end of the war, troops under Montgomery's command had taken part in the encirclement of the Ruhr Pocket, liberated the Netherlands, and captured much of north-west Germany.