Its creation during the French occupation
In 1690, under the orders of Louis de Buade, Duke of Frontenac, a first wall was built around the city of Quebec, like the Château de Frontenac. A few months later, the walls proved very useful when the English fleet attacked Quebec. Fearing a more serious attack, as had been the case for centuries on the other side of the Atlantic, construction of a new wall began in 1693. It was supposed to be bigger, stronger and more reassuring for New France. However, it remained... unfinished. Between 1700 and 1720, the landscape of Quebec City was transformed. Here and there, the beginnings of fortifications sprang up in the landscape.
However, they were often abandoned in favour of the development of the city of Montreal, which the metropolis considered to be more important. The city's skyline was inadequate, disharmonious and unprotected. It wasn't until 1745, following the panic caused by the surrender of Louisbourg, that a proper fortified masonry wall was built.