Complex sentence: In 1056, the first Cluniac nunnery was founded at Marcigny and after this other convents followed including those in the British Isles; the Cluniac nuns were always been greatly outnumbered by their male counterparts.
Split into simpler sentences: In 1056, the first Cluniac nunnery was founded at Marcigny and after this other convents followed including those in the British Isles. The Cluniac nuns were always been greatly outnumbered by their male counterparts.