Complex sentence: Fierté Montréal, also known in English as Montréal Pride, was founded in 2007 at the initiative of Montréal's LGBTQ communities, Montréal Pride is the largest LGBTQ gathering in the francophone world.
Split into simpler sentences: Fierté Montréal, also known in English as Montreal Pride, was founded in 2007 at the initiative of Montreal's LGBTQ communities. Montreal Pride is the largest LGBTQ gathering in the francophone world.