George Washington died December 14, 1799
Washington wasn't feeling well on the morning of December 13th. Throughout the day his condition worsened. He had had two wills. He read them over and threw one into the fire. His funeral was on December 18th.
Washington had left in his will to emancipate all of the enslaved people he had owned after Martha Washington's death. She signed a deed of manumission and they were freed on January 1st, 1801.
George and Martha Washington are buried in the New Tomb at Mount Vernon.