Tsang Wuqiong, the August Emperor of Jade, the Infinite King
Some sovereigns prefer a different sort of tax from their subjects - whether freely given, or taken by force.
During big fights in the arena or gladitorial ring between two well known or important warriors. When one looses and dies, the crowd throws copper coins into the arena for the slain warrior to take with them on their passage of death. This is to make their passage and afterlife richer and less troubled. It is a sign of respect.