Stanley, a religiously devout Anglican, broke with the ministry over the reform of the Anglican Church of Ireland in 1834 and resigned from the government. He then formed a group called the "Derby Dilly" and attempted to chart a middle course between what they saw as the increasingly radical Whiggery of Lord John Russell and the conservatism of the Tories. Tory leader Sir Robert Peel's turn to the centre with the 1834 Tamworth Manifesto, published three days before Stanley's "Knowsley Creed" speech, robbed the Stanleyites of much of the uniqueness of their programme.