Complex sentence: Within months, however, the King had died and Elizabeth ascended to the throne as queen, her coronation taking place in London, England, in June 1953, attended by a number of Quebec dignitaries, including Cabinet ministers Onésime Gagnon and John Samuel Bourque.
Split into simpler sentences: Within months, however, the King had died and Elizabeth ascended to the throne as queen. Her coronation took place in London, United Kingdom, in June 1953, and a number of Quebec dignitaries attended, including Cabinet ministers Onésime Gagnon and John Samuel Bourque.