Complex sentence: However, this was thrown out in 1412, Emperor Go-Komatsu renegade on the treaty by installing his own son as successor, and henceforth no Southern Court member ever sat on the Chrysthansemum Throne again.
Split into simpler sentences: However, this was thrown out in 1412 as Emperor Go-Komatsu renaged on the treaty by installing his own son as successor. Henceforth, no Southern Court claimant ever sat on the Chrysthansemum Throne again.