Complex sentence: Eberhard I (died 1325) opposed, sometimes successfully, three German kings; he doubled the area of his county and transferred his residence from Württemberg Castle to the "Old Castle" in today's city centre of Stuttgart.
Split into simpler sentences: Eberhard I (died 1325) opposed, sometimes successfully, three German kings. He doubled the area of his county and transferred his residence from Württemberg Castle to the "Old Castle" in today's city centre of Stuttgart.