Palace. An attempt on his life at the Theatre Royal, Drury Lane, in which one person was shot dead before the assailant was brought under control, boosted his high public profile. His father distrusted or was jealous of George's popularity, which contributed to the development of a poor relationship between them. The birth in 1717 of George's second son, Prince George William, proved to be a catalyst for a family quarrel; the King, supposedly following custom, appointed Lord Chamberlain Thomas Pelham-Holles, 1st Duke of Newcastle, as one of the baptismal sponsors of the child. The King was angered when George, who disliked Newcastle, verbally insulted the duke at the christening, which the duke misunderstood as a challenge to a duel. George and Caroline were temporarily confined to their apartments on the order of the King, who subsequently banished his son from St James's Palace, the King's residence. The Prince and Princess of Wales left court, but their children remained in the care of the King. George and Caroline missed their children, and were desperate to see them. On one occasion, they secretly visited the palace without the approval of the King; Caroline fainted and George "cried like a child". The King partially relented and permitted them to visit once a week, though he later allowed Caroline unconditional access. In February 1718, George William died aged only three months, with his father by his side. Political opposition Banned from the palace and shunned by his own father, the Prince of Wales was identified for the next several years with opposition to George I's policies, which included measures designed to increase religious freedom in Great Britain and expand Hanover's German territories at the expense of Sweden. His new London residence, Leicester House, became a frequent meeting place for his father's political opponents, including Sir Robert Walpole and Lord Townshend, who had left the government in 1717. The King visited Hanover again from May to November 1719. Instead of appointing George to the guardianship, he established a regency council. In 1720, Walpole encouraged the King and his son to reconcile, for the sake of public unity, which they did half-heartedly. Walpole and Townshend returned to political office, and rejoined the ministry. George was soon disillusioned with the terms of the reconciliation; his three daughters who were in the care of the King were not returned and he was still barred from becoming regent