 Sir John was described by Horace Walpole as a man of open character, sharp intelligence and "strong passions which could not be concealed", He was notorious for gambling and womanising, and was said to have several illegitimate children.When objections were made to his promotion on the grounds of his debauched lifestyle, Sir Robert Walpole reportedly joked that he had always understood that such conduct was an essential qualification for high judicial office.On the other hand it was generally agreed that his reputation prevented him from becoming Lord Chancellor, an office he undoubtedly wanted and was qualified for on grounds of legal ability.