The Treaty of Edinburgh was signed in 1560 between England and Scotland, marking a significant step in the relationship between the two nations. This treaty aimed to establish peace and support the Protestant Reformation in Scotland, which was influenced by the growing tensions between Catholic and Protestant factions. The treaty also recognized the authority of the Scottish Parliament and sought to remove French troops from Scotland, who were there to support the Catholic Mary, Queen of Scots. The agreement laid the groundwork for future cooperation between England and Scotland and helped shape the political landscape of the British Isles.