Complex sentence: Seiken Shukumine appointed a successor for Genseiryu, the first one being sensei Yamada, later followed by sensei Saito and after his death, sensei Yasunori Kanai.
Split into simpler sentences: Seiken Shukumine appointed a successor for Genseiryu. The first one being sensei Yamada, later followed by sensei Saito and after his death, sensei Yasunori Kanai.