When did England stop speaking french?

Answer 1

I wouldn't be sure that England used French language much, except probably when William the conqueror invaded in 1066 (battle of Hastings and all that).

Answer 2

English gradually replaced French as the primary language of England between the 14th and 15th centuries after the Norman Conquest in 1066. By the late 14th century, English had become the dominant language in legal and administrative matters, and by the early 15th century, French had largely fallen out of everyday use.