Lord[1] George Stewart (or Stuart), 9th Seigneur d'Aubigny (17 July 1618 – 23 October 1642) was an Anglo-Scottish[2] nobleman of French descent and a third cousin of King Charles I of England.

His father died of spotted fever when George was aged 6 and he became a ward of his cousin King Charles I of England.

The Château d'Aubigny and the lordship of that manor (Seigneurie d'Aubigny) was first acquired by his distant relative Sir John Stewart of Darnley, 1st Comte d'Évreux (c.1380–1429), a Scottish nobleman and famous military commander who served as Constable of the Scottish Army in France, supporting the French against the English during the Hundred Years War, and a fourth cousin[5] of King James I of Scotland (reigned 1406 to 1437), the third monarch of the House of Stewart.

In 1632, at the age of 14, he inherited the Seigneurie d'Aubigny (lordship of the manor of Aubigny-sur-Nère),[6] following the death of his 17-year-old elder brother Henry Stewart (1616–1632), who died in Venice.

As civil war loomed in England, Stewart joined the forces of King Charles at York where he was knighted on 18 April 1642 along with his brother Bernard.