The Battle of the Windmill was in November, 1838. Loyalists defeated an invasion attempt by Hunter Patriots, led by Nils von Schoultz, who were attempting to overthrow British rule. The battle was at a windmill two miles east of Prescott.
Leeds County, Ontario, Canada was first surveyed in 1792 in preparation for the United Empire Loyalists settlers. In 1850, Leeds County merged with Grenville to create the United Counties of Leeds and Grenville.