Complex sentence: He was, however, an incapable ruler unlike his grandfather and father.He had a bitter rivalry with Oda Nobunagaand lost to him in 1564 but survived, yet the Saito family were no longer players in the Sengoku wars.
Split into simpler sentences: He was, however, an incapable ruler unlike his grandfather and father. He lost to Oda Nobunaga in 1564 but survived, yet the Saito family were no longer players in the Sengoku wars.