Complex sentence: Commodore Rochfort Maguire (Died 1867) was a Royal Navy officer who served as Captain of HMS Plover from 1852 to 1853 during the Franklin Search Expedition.
Split into simpler sentences: Commodore Rochfort Maguire (Died 1867) was a Royal Navy officer. Maguire was Captain of HMS Plover from 1852 to 1853 during the Franklin Search Expedition.