
Fort Saint Louis was a French fort built in the 17th century onNewfoundland at the time of theNew France.
The construction began in 1690 for a new French fort on Newfoundland.
In 1662, the French had established a strategic trading post in a well protected cove overlookingPlacentia Bay that separates Avalon to the rest of Newfoundland and near theGrand Banks.
To protect this place, several forts were built around the cove,Fort Plaisance from 1662, theFort Royal in 1687 and Saint Louis 1690.
Fort Saint Louis was built inside the harbor in order to protect the small port city ofPlaisance from an enemy attack. It was to reinforce the old fort built of wood in Placentia. Fort Saint Louis was built in stone. Its enclosure was nearly 250 meters long, encircling two bastions, the headquarters of the governor and the buildings of the garrison. The walls stood four meters high and the walls measured two meters thick. Almost thirty guns were operational on this fort.
The fort was attacked duringKing William's War in theBattle of Placentia (1692).
In 1713, theTreaty of Utrecht forced the French to abandon their settlements in Newfoundland. 'Plaisance' became 'Placentia'. The inhabitants were moved toÎle Royale which began the construction ofLouisbourg.
47°15′05″N53°57′52″W / 47.251348°N 53.964388°W /47.251348; -53.964388