Complex sentence: William Williams (1875-January 13 1968), better known by his bardic name of "Crwys", was a Welsh poet and served as Archdruid of the National Eisteddfod of Wales from 1939 to 1949.
Split into simpler sentences: William Williams (4 January 1875-13 January 1968), better known by his bardic name of "Crwys", was a Welsh poet. He served as Archdruid of the National Eisteddfod of Wales from 1939 to 1949.