Brown, 57, has been a Conservative MP since 2004. He represented the Ontario riding of Leeds-Grenville-Thousand Islands and Rideau Lakes, Xinhua reported.
He was found in his Ottawa office where it is believed he died of an apparent heart attack. Brown is survived by his wife Claudine and two sons, Chance and Tristan. He once served as the Conservative Party whip, and was a member of several parliamentary associations and inter-parliamentary groups.
On Wednesday afternoon, Canadian MPs gathered in the House of Commons to pay tribute to Brown before observing a moment of silence and adjourning for the day.
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