Cornet Joyce

Cornet George Joyce (born 1618) was an officer in the Parliamentary New Model Army during the English Civil War.

Between 2 and 5 June 1647, while the New Model Army was assembling for rendezvous at the behest of the recently formed Army Council, George Joyce seized King Charles I from Parliament's custody at Holdenby House and brought him to Thomas Fairfax's headquarters on Triplo Heath (8 miles south of Cambridge, and now spelled Thriplow Heath), a move that weakened Parliament's position and strengthened the Army's.

...
Wikipedia