The Treaty of Brussels was signed in 1367, establishing a marriage alliance between England and France and regulating trade. It was a minor treaty in the context of the Hundred Years' War. The treaty was seen as an attempt to resolve tensions through diplomacy.

The Treaty of Brussels was noted in diplomatic poetry, which often celebrated the marriages and alliances that were intended to keep peace. It contributed to the genre of 'marriage poetry', where unions between royal houses were praised in verse. The treaty's ephemeral nature made it a symbol of the fragility of peace in the Hundred Years' War.