Given the question: Sir Hector-Louis Langevin PC KCMG CB QC (August 25 1826 June 11 1906) was a Canadian lawyer politician and one of the Fathers of Confederation. He also had an important role to play in the establishment of the Indian Residential Schools.Langevin was born in Quebec City in 1826. He studied law and was called to the bar in 1850. In 1856 he was elected to the municipal council of Quebec City and was mayor from 1858 to 1861. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
The answer is:
Office Holder