In August 1825, the Monroes had received the Marquis de Lafayette and President John Quincy Adams as guests there. As President Jefferson's special envoy, Monroe helped negotiate the Louisiana Purchase, through which the United States nearly doubled in size. Monroe fell out with his longtime friend James Madison after Madison rejected the Monroe–Pinkney Treaty that Monroe negotiated with Britain. Monroe's mother was the daughter of James Jones, who immigrated from Wales and. See also: List of memorials to James Monroe. Monroe's mother was the daughter of James Jones, who immigrated from Wales and. See also: List of memorials to James Monroe.
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