policy, and after the resignation of his brother-in-law Townshend in 1730 also controlled George's foreign policy. Historians generally believe that George played an honorific role in Britain, and closely followed the advice of Walpole and senior ministers, who made the major decisions. Although the King was eager for war in Europe, his ministers were more cautious. A truce was agreed in the Anglo-Spanish War, and George unsuccessfully pressed Walpole to join the War of the Polish Succession on the side of the German states. In April 1733 Walpole withdrew the unpopular Excise Bill that had attracted strong opposition, including from within his own party. George lent Walpole support by dismissing the bill's opponents from their court offices. Family problems George II's relationship with his son Frederick, Prince of Wales, worsened during the 1730s. Frederick had been left behind in Germany when his parents came to England, and they had not met for 14 years. In 1728, he was brought to England, and swiftly became a figurehead of the political opposition. When George visited Hanover in the summers of 1729, 1732 and 1735, he left his wife to chair the regency council in Britain rather than his son. Meanwhile, rivalry between George II and his brother-in-law and first cousin Frederick William I of Prussia led to tension along the Prussian–Hanoverian border, which eventually culminated in the mobilization of troops in the border zone and suggestions of a duel between the two kings. Negotiations for a marriage between the Prince of Wales and Frederick William's daughter Wilhelmine dragged on for years but neither side would make the concessions demanded by the other, and the idea was shelved. Instead, the prince married Princess Augusta of Saxe-Gotha in April 1736. In May 1736, George returned to Hanover, which resulted in unpopularity in England; a satirical notice was even pinned to the gates of St James's Palace decrying his absence. "Lost or strayed out of this house", it read, "a man who has left a wife and six children on the parish." The King made plans to return in the face of inclement December weather; when his ship was caught in a storm, gossip swept London that he had drowned. Eventually, in January 1737, he arrived back in England. Immediately, he fell ill with a fever and piles, and withdrew to his bed. The Prince of Wales put it about that the King was dying,