Text: But Nepal and the Mallas became fragmented upon the death in 1482 of King Yaksha Malla, who divided his lands amongst his heirs.
Entailment: Upon the death in 1482 of King Yaksha Malla, who divided his lands amongst his heirs, and so Nepal and the Mallas became fragmented.
Contradiction: However, the Mallas and Nepal stayed in the hands of King Yaksha Malla in 1482, because he was in extraordinary good health.