A fleet under Lord Robert Graves failed to relieve the losers at this battle after being defeated by the Admiral De Grasse at the Battle of (*) Chesapeake.
Reinforcements to the victor's side during this battle came from Head of Elk. The victors of this battle took Redoubts 9 and 10, an effort in part led by Alexander Hamilton. A fleet under Lord Robert Graves failed to relieve the losers at this battle after being defeated by the Admiral De Grasse at the Battle of (*) Chesapeake. French general Comte de Rochambeau led the French forces in this battle, who were allied with Continental army. For 10 points, name this battle that resulted in the surrender of General Charles Cornwallis to General George Washington.   
Reinforcements to the victor's side during this battle came from Head of Elk.
Battle of Yorktown [accept “Siege of Yorktown”]