He is best remembered for his celebrated quarrel with the future Duke of Bolton, which is recorded in the Diary of Samuel Pepys.
His father was Chief Clerk in the King's Bench, in which office he amassed a fortune which enabled him to purchase lands in three counties, and his country seat at Bramshill House.
As a Royalist he was forced to pay heavy fines after the English Civil War, but Andrew nonetheless came into a substantial inheritance on his father's death in 1656, which he largely wasted through his extravagance.
[2] He was notoriously extravagant, although in his defence it should be said that the fortune his father accumulated had been greatly decreased by the fines imposed on him as a Royalist.
Samuel Pepys records in his Diary [3] that at Westminster Hall Henley became engaged in a fracas with Lord St. John, later the 1st Duke of Bolton, while the Court of Common Pleas was in session, and struck him on the head with his cane.