This article examines the individuals who came to London in order to lobby the imperial authorities in favour of the expansion of French-Canadian rights from the 1763 Treaty of Paris to the 1840 Act of Union and who were delegated by a significant body or institution within French Canada. Early efforts were centred on the expansion of religious rights and the perpetuation of Quebec’s legal and social institutions, including French civil law and the seigneurial system. Religious affairs remained an important facet of French-Canadian lobbying throughout the British regime, though the issue of political reform, which came to the fore in the 1780s, soon came to dominate lobbying efforts. These efforts were predicated on ideas of loyalty, as delegates sought to negotiate a place within the British Empire for French Canada. They lobbied London to allow French Canadians to fully participate in civic life within the framework of British political institutions while also allowing Quebec to retain its particular religious and social institutions. Delegates experienced some success, especially when they enjoyed the support of the colonial authorities at Quebec, but often failed to achieve their goals because they ran counter to British policy or because their English-speaking opponents had greater access to Whitehall.