He was the son of Alexander Stewart, who had married Mary Cowan, sister and heiress of Robert Cowan, who gained great wealth as Governor of Bombay from 1729 to 1737.
He was the son of Alexander Stewart. Alexander Stewart had married Mary Cowan, sister and heiress of Robert Cowan. Robert Cowan gained great wealth as Governor of Bombay from 1729 to 1737.