Rigbie House, also known as "Phillip's Purchase", is a historic home located at Berkley, Harford County, Maryland. It is a 1+1⁄2-story, frame and stone structure built about 1781. It was one of a series of forest outposts fortified against the Indians and representing Lord Baltimore’s claim of 1632 to land extending north to the 40th parallel. In April 1781, it was the place where the Marquis de Lafayette’s officers quelled a mutiny that might have prevented his army of New England troops, who had been headed homeward, from turning south again to join General Greene and General Washington at Yorktown, in which case that battle might never have been fought.