Complex sentence: In 900, he tried to curb the power of Archbishop Fulk of Rheims by assassinating him, but he was excommunicated by Pope Benedict IV. He died at Blandimberg and was succeeded by his eldest son Arnulf I of Flanders.
Split into simpler sentences: In 900, he tried to curb the power of Archbishop Fulk of Rheims by assassinating him, but he was excommunicated by Pope Benedict IV. He died at Blandimberg. He was succeeded by his eldest son Arnulf I of Flanders.