The Battle of Fort Frontenac took place on August 26–28, 1758 during the Seven Years' War (referred to as the French and Indian War in the United States) between France and Great Britain. The location of the battle was Fort Frontenac, a French fort and trading post which is located at the site of present-day Kingston, Ontario, at the eastern end of Lake Ontario where it drains into the St. Lawrence River.
British Lieutenant Colonel John Bradstreet led an army of over 3,000 men, of whom about 150 were regulars and the remainder were provincial militia. The army besieged the 110 people inside the fort and won their surrender two days later, cutting one of the two major communication and supply lines between the major eastern centres of Montreal and Quebec City and France's western territories (the northern route, along the Ottawa River, remained open throughout the war). The British captured goods worth 800,000 livres from the trading post.
The British military campaigns for the North American theatre of the Seven Years' War in 1758 contained three primary objectives. Two of these objectives, captures of Fort Louisbourg and Fort Duquesne met with success. The third campaign, an expedition involving 16,000 men under the command of General James Abercrombie, was disastrously defeated on July 8, 1758, by a much smaller French force when it attempted the capture of Fort Carillon (known today as Fort Ticonderoga). This defeat was an impetus to attack Fort Frontenac.
Lieutenant Colonel John Bradstreet renewed an earlier proposal to capture Fort Frontenac, a French fort and trading post on the northern shore of Lake Ontario near where it empties into the St. Lawrence River. Abercrombie, who had first rejected the idea, citing the need for troops to attack Carillon, approved Bradstreet's plan to move up the Mohawk River valley to the site of Fort Oswego (captured and burned by the French in 1756), and then cross the lake to assault Frontenac. The British considered Fort Frontenac to be a strategic threat since it was in a position to command transportation and communications to other French fortifications and outposts along the St. Lawrence – Great Lakes water route and in the Ohio Valley. Although not as important as it once was, the fort was still a base from which the western outposts were supplied. The British reasoned that if they were to disable the fort, supplies would be cut off and the outposts would no longer be able to defend themselves. The British also hoped that taking the well-known fort would boost troop morale and honour after their demoralizing battle defeat at Fort Ticonderoga (Fort Carillon) in July 1758. The Indian trade in the upper country (the Pays d'en Haut) would also be disrupted.
European colonization of North America accelerated after 1600, with England, France, Spain, and the Netherlands establishing competing settlements along the Atlantic coast, the St. Lawrence River, the Gulf of Mexico, and the Mississippi Valley. The first permanent English settlement at Jamestown, Virginia (1607) struggled with starvation and conflict; the Plymouth colony (1620) and the Massachusetts Bay Colony (1630) followed. By the mid-1700s, thirteen English colonies stretched along the Atlantic seaboard, governed through a mix of royal charters, proprietary grants, and elected assemblies. The colonial economy depended on tobacco in Virginia and Maryland, rice and indigo in the Carolinas, and maritime trade in New England — all increasingly reliant on enslaved African labor after 1619. Conflict with Indigenous peoples over land was continuous, punctuated by major wars including King Philip's War (1675–1676) in New England and the Yamasee War (1715–1717) in the South. The French and Indian War (1754–1763), part of the global Seven Years' War, ended French power in North America and left Britain deeply in debt — triggering the taxation disputes that would lead to revolution.
This page covers French and Indian War – Capture of Fort Frontenac 1758. A full Aubrey report for the area pulls together this battle alongside historic sites, land records, and everything else the record holds within a few miles:
Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.
Content adapted from Wikipedia under the Creative Commons Attribution-ShareAlike 4.0 International License. Wikipedia source.
Aubrey generates in-depth historical research for any location in the US, drawing on NRHP records, battlefield archives, census history and geological data to tell the full story of a place.