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is a small unincorporated community in Whitemarsh Township, Montgomery County in the Commonwealth of Pennsylvania.
Lafayette Hill is located just west of Philadelphia's Chestnut Hill neighborhood, and south of Plymouth Meeting. Lafayette Hill draws its name from the French General Marquis de Lafayette, who stayed there during the American Revolution.
Prior to general decampment from Valley Forge in the spring of 1778, George Washington dispatched an estimated 2200 troops under the command of Marquis de Lafayette to act as a defensive screen and to conduct reconnaissance of the British army, which had garrisoned in Philadelphia for the winter. The two forces had a brief engagement at nearby Barren Hill.