Complex sentence: Facing military defeat and bankruptcy, the Sprigg government became more and more unpopular and, once his imperial protector Bartle Frere was recalled to London, the Sprigg government was overthrown by opposition movements in the Cape Parliament.
Split into simpler sentences: Facing military defeat and bankruptcy, Sprigg became more and more unpopular. Once his imperial protector Bartle Frere was recalled to London, the Sprigg government was overthrown by opposition movements in the Cape Parliament.