 Knatchbull-Hugessen also inherited the Knatchbull Baronetcy, of Mersham Hatch, after the death of another cousin, Sir Wyndham Knatchbull, 12th Baronet, in 1917.Knatchbull-Hugessen was a director and later the chairman of the Consolidated Gold Fields of South Africa and was primarily a businessman.He died while journeying from Cape Town, where he had business interests, to London aboard the SS "Caernarvon Castle" in February 1933 aged 69.