The moderate reformers Louis-Hippolyte Lafontaine and Robert Baldwin fought two successive governors general Sir Charles Bagot and Sir Charles Metcalfe to secure what became known as responsible government. Metcalfe fought to preserve the prerogatives of the Crown and the governor's control over the administration and patronage. He nonetheless had to make some concessions to win support, and the most notable of these was persuading the Colonial Office to grant amnesty to the rebels of 1837–38, and to abandon forced anglicization of the French-speaking population. Lafontaine and Baldwin reintroduced French as an official language alongside English in the Assembly, the Courts and other governmental bodies. Under the progressive Governor General James Bruce (Lord Elgin), a bill was passed to allow the leaders of former Patriote movement to return to their homeland; Papineau returned and for a short time re-entered Canadian politics. A similar bill was passed for the former Upper Canadian rebels. Elgin also implemented the practice of responsible government in 1848, several months after it had already been granted to the colony of Nova Scotia.