On his return, Sunderland formally reverted to Anglicanism, taking the oaths in April 1691 and quietly recommenced sitting in the House of Lords. In May William paid a visit to him at his home in Althorp, Northamptonshire, to discuss public affairs. Over the next years the King frequently visited him and gave him confidence, but Sunderland did not dare to fully enter public life until September 1693, when he took a house in the city. He repeatedly advised the King to select all of his ministers from one political party, and eventually effected a reconciliation between William and his sister-in-law, the later Queen Anne. He was an influential adviser, inducing William to accept only Whigs in his government. William, never vindictive, was untroubled by Sunderland's past services to James, who had made it very clear that Sunderland was the one man he would never forgive, though he had made tentative advances towards the fallen King. Most of William's servants had at sometime betrayed him, and he valued Sunderland for his frankness and ability to voice unwelcome truths. It has been suggested that Sunderland's notorious rudeness actually appealed to the King, who detested flattery and could himself be distinctly rude. Once when William said that, while the Whigs personally liked him better than the Tories, the Tories were better friends to Monarchy, Sunderland shrewdly replied: "but you must consider that you are not their Monarch". He even wrote a letter telling the King that if his Ministers were not fit for his service, it was his own fault for not choosing better men.