Complex sentence: Leo-Raymond de Neckère, C.M. (6 June 1800--4 September 1833), was a Belgian-born prelate of the Roman Catholic Church who served as Bishop of New Orleans from 1830 until his death in 1833.
Split into simpler sentences: Leo-Raymond de Neckère, C.M. (6 June 1800--4 September 1833), was a Belgian-born prelate of the Roman Catholic Church. He served as Bishop of New Orleans from 1830 until his death in 1833.