[1] He was born in Saint-François-du-Lac, Quebec, the son of Eusèbe Mondou and Marie-Georgina Desmarais, and was educated at the Séminaire de Nicolet and the Université Laval.

He qualified to practise as a notary in 1894 and set up practice in Montreal.

Mondou was a director of the Strathcona Fire Insurance Company and vice-president and manager of the Quebec and Western Canada Land Syndicate Ltd.

Mondou defeated Victor Gladu in 1897 for a seat in the Quebec assembly; that election was overturned and he lost two subsequent by-elections held later that year.

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