Complex sentence: In 1473, both Yamana and Hosokawa died, but Ōuchi refused to lay down his arms until the Shogunal succession was decided; he even refused a direct order from the Shogun himself.
Split into simpler sentences: In 1473, both Yamana and Hosokawa died, but Ōuchi refused to lay down his arms until the Shogunal succession was decided. He even refused a direct order from the Shogun himself.