Irish Church Act 1869

The Irish Church Act 1869 was an act of the Parliament of the United Kingdom which separated the Church of Ireland from the Church of England and disestablished the former, a body that commanded the adherence of a small minority of the population of Ireland. The act was passed during the first ministry of William Ewart Gladstone and came into force on 1 January 1871. It was strongly opposed by Conservatives in both houses of Parliament.
The act meant the Church of Ireland was no longer entitled to collect tithes from the people of Ireland. It also ceased to send representative bishops as Lords Spiritual to the House of Lords in Westminster. Existing clergy of the church received a life annuity in lieu of the revenues to which they were no longer entitled: tithes, rentcharge, ministers' money, stipends and augmentations, and certain marriage and burial fees.
The passage of the bill through Parliament caused acrimony between the House of Commons and the House of Lords. Queen Victoria personally intervened to mediate. While the Lords extorted from the Commons more compensation to alleviate the disestablished churchmen, in the end, the will of the Commons prevailed.
The Irish Church Act was a key move in dismantling the Protestant Ascendancy which had dominated Ireland for the prior century.

Development of the Salisbury Convention

The modern Salisbury Convention, which holds that the House of Lords should not block bills from the House of Commons in which the government has an election mandate, existed in earlier forms through doctrines developed by the third Marquess of Salisbury over his political career. The question of the establishment of the Church of Ireland was an early case in which the House of Lords refused passage of a bill on the basis that the Commons lacked an election mandate on the issue. In the previous parliament, a bill placing restrictions upon the Church of Ireland failed in the House of Lords, with many Lords arguing that the question should first be put before the public in an election campaign before passage. The Irish Church was a major question of the 1868 election, and following the majority victory of the Liberal Party the House of Lords did not block the Irish Church Act of 1869.