My five greats grandfather, Johann Philip Reges, was a member of the Erbprinz Regt.of Auxilliary troops from Hanau, Hesse, mercenaries of the King, who were surrendered at Saratoga in 1777. He marched as a prisoner to Boston, left for Virginia in November of 1778, and escaped on 31 Dec 1778 in or near York, Pennsylvania.
There is some belief that many of these Hessians were allowed, if not encouraged, to escape as feeding them had become an issue.
Reges and several others remained and became part of the already well-established German communities in Pennsylvania.