Count Carl Emil Ulrich von Donop (January 1, 1732[1] – October 25, 1777) was a Hessian colonel who fought in the American Revolutionary War.

A highly ambitious officer, Donop hoped to remain in North America after the war, to pursue dreams of power and glory.

His main camp was at Bordentown prior to the Battle of Trenton, with one battalion occupying the town and the rest billeted along the country roads in Slabtown [Jacksonville] Black Horse [Columbus] Burlington City and White Hill (the Mary Field Plantation).

In response to this attack, Donop moved his entire force south, pushing the colonials through Mount Holly at the Battle of Iron Works Hill and onto the opposite side of the Rancocas Creek.

Donop had nothing but contempt for Rall and decided to spend Christmas in the company of "a beautiful young widow" - as reported by his Captain of Jägers, Johann Ewald.

The victory at Trenton was won by Washington, but some credit should be given to the young widow who held Donop out of position a day too long to be of help to Rall.

General Howe agreed, if it could be done easily,[3] and gave Donop command of 2,000 Hessian mercenary troops, with which he crossed the Delaware River on October 22.

That afternoon, Donop surrounded the fort and demanded surrender from Colonel Christopher Greene with the threat of invasion and no quarter.