Madison's presidency, by treaty or war, added 23 million acres of American Indian land to the United States. He retired from public office in 1817 and died in 1836. In the early 1760s, the Madison family moved into a newly built house, which they named Montpelier. In the early 1760s, the Madison family moved into a newly built house, which they named Montpelier. Before a quorum was reached at the Philadelphia Convention on May 25, 1787, Madison worked with other members of the Virginia delegation, especially Edmund Randolph and George Mason, to create and present the Virginia Plan. The Virginia Plan was an outline for a new federal constitution; it called for three branches of government (legislative, executive, and judicial), a bicameral Congress (consisting of the United States Senate and the United States House of Representatives) apportioned by population, and a federal Council of Revision that would have the right to veto laws passed by Congress.