Background
He was the son of Esmé Stewart, 3rd Duke of Lennox, and his wife Katherine Clifton, 2nd Baroness Clifton, and the brother of James Stewart, 1st Duke of Richmond and 4th Duke of Lennox, and of the Royalist commander Lord Bernard Stewart.
student commander duke of Lennox
He was the son of Esmé Stewart, 3rd Duke of Lennox, and his wife Katherine Clifton, 2nd Baroness Clifton, and the brother of James Stewart, 1st Duke of Richmond and 4th Duke of Lennox, and of the Royalist commander Lord Bernard Stewart.
University of Paris.
By 1633, he was a student at the Collège de Navarre, part of the University of Paris, and he did homage to Louis XIII of France for the lordship of Aubigny on 5 August 1636, shortly after his eighteenth birthday. Later that year he moved to England. They were also both killed in the Civil War.
George Stewart and Katherine Howard had two children:
Charles Stewart, later 3rd Duke of Richmond and 6th Duke of Lennox (1638–1672)
He fought with the French against the Spanish in the Battle of Montjuïc (1641).
He was mortally wounded in the first pitched battle of the war at Edgehill on Sunday 23 October 1642, aged 24. He was buried in Christ Church Cathedral, Oxford.
His widow remarried James Levingston, 1st Earl of Newburgh and had one further child Elizabeth. They were suspected in 1648 of plotting to rescue Charles I and on the discovery of the supposed plot fled to the Netherlands where Katherine died in 1650.