[1] His son was William de Kethcart who was a witness to a charter in about 1200, exchanging the lands of Knoc near Walkinshaw with the Abbey of Paisley.

[1] In 1234 a charter of resignation of the lands of Culbeth to the Abbot of Paisley was sealed by Alan de Cathcart.

[1] William was succeeded by Alan de Cathcart who was a staunch supporter of king Robert the Bruce in cause of Scottish independence.

[1] He followed the king's brother, Edward Bruce and was among a party of just fifty knights who surprised a much superior English force under Lord St John in Galloway and routed them.

[1] Alan survived the Wars of Scottish Independence and is recorded in a deed making a gift to the Dominican Friars of Glasgow in 1336.

[1] He and his men fought for the Regent Moray at the Battle of Langside in 1568 against the army of Mary, Queen of Scots.

[1] The ancient Cathcart Castle has a view point and is near the battlefield, from which the queen is said to have awaited the outcome of the battle.

[1] The second Earl Cathcart also had a distinguished military career and served throughout the Peninsular War, fighting at the Battle of Waterloo in 1815.