Background
He was born at Pointe-Claire in 1764, the son of a farmer, and studied at the Collège Saint-Raphaël.
He was born at Pointe-Claire in 1764, the son of a farmer, and studied at the Collège Saint-Raphaël.
He then entered the fur trade as a voyageur. Soon afterwards, Portelance entered the lumber trade, supplying boards and planks for construction in Montreal. He was elected to the Legislative Assembly of Lower Canada to represent Montreal County in 1804 and represented it until 1814.
Portelance was elected to represent Montreal East in 1816.
He generally supported the parti canadien in the assembly. He retired from the lumber business around 1820.
He helped found Louisiana Banque du Peuple in 1837. He died at Kamouraska in Lower Canada in 1838.