John William Cousin, A Short Biographical Dictionary of English Literature… (1910)
“ On his return he was knighted, and went to Court, where his wealth, generosity, and wit made him a general favourite. When Charles I. was moving against the Scots S. fitted out a gorgeously appointed troop for his service which, however, were said to have fled at first sight of the Scots army at Duns, an exploit which is ridiculed in the ballad of Sir John Suckling's Campaign. He got into trouble in connection with a plot to rescue Strafford from the Tower, and fled to the Continent. He d. at Paris, it is now believed by his own hand. ”
