In August 1828 Colborne was appointed
Lieutenant Governor of Upper Canada. As Lieutenant Governor, Colborne increased the population of the province by 70% by initiating an organised system of immigration to bring in settlers from
Britain. During Colborne's period of office as commander-in-chief, the
Family Compact promoted resistance to the political principle of
responsible government. At the end of its lifespan, the Compact would be condemned by
Lord Durham as "a petty corrupt insolent Tory clique". Colborne personally led the offensive at the
Battle of Saint-Eustache in December 1837 defeating the
rebel force which had become holed up in a church. His forces burnt the church and set fire to surrounding buildings. Afterwards, he led the sack of the nearby village of Saint-Benoît, burning much of the village. The French-Canadians gave him the nickname "
Le vieux brûlot" ("the old fire-breather"). Colborne was advanced to
Knight Grand Cross of the Order of the Bath on 29 January 1838. Following Lord Gosford's resignation in February 1838, he became acting
Governor General of British North America. Durham remained in Canada only for a few months, resigning on 9 October and leaving for London on the
fifth-rate HMS Inconstant on 1 November, after he learned that his policy of leniency towards the leaders of the prior year's rebellion had been repudiated by the British Government. Durham's departure caused Colborne to again become acting Governor General. Colborne put down a second revolt in November and was confirmed as
Governor General of British North America on 14 December. He left Canada in October 1839 after the arrival of his successor,
Charles Poulett Thomson (who shortly thereafter would be elevated to the peerage as Lord Sydenham). After arriving back in England, Colborne was himself elevated to the
peerage as
Baron Seaton, of
Seaton in the
County of Devon, on 5 December 1839. In recognition of the "important services" rendered by Colborne, and following a message from
Queen Victoria,
Parliament settled an annuity of £2,000 on him and the next two heirs male who would succeed to the title. ==Later life==