Complex sentence: Edward Joseph Byrne (10 June, 1872--Feb 9,1940) served as the Roman Catholic Archbishop of Dublin from 1921 until his death in 1940.
Split into simpler sentences: Edward Joseph Byrne (May 10,1872--February 9,1940) was an Irish prelate of the Roman Catholic Church. He served as Archbishop of Dublin from 1921 until his death in 1940.