In April 1782, with Volunteer cavalry, infantry, and artillery posted on all approaches to the Parliament in Dublin, Henry Grattan, leader of the Patriot opposition, had a Declaration of Irish Rights carried by acclaim in the Commons. London conceded, surrendering its powers to legislate for Ireland. In 1783 Volunteers converged again upon Dublin, this time to support a bill presented by Grattan's patriot rival, Henry Flood, to abolish the proprietary boroughs and to extend the vote to a broader class of Protestant property holders. But the Volunteer moment had passed. Having accepted defeat in America, Britain could again spare troops for Ireland, and the limits of the Ascendancy's patriotism had been reached. Parliament refused to be intimidated.