Yassalalaka Tissa was King of Anuradhapura in the 1st century, whose reign lasted from 52 to 60.
Yassalalaka, who came to the throne after assassinating his brother, is described in history as a playful as well as a vicious ruler, totally unfit for kingship.
Yassalalaka used to adorn Subha with his royal jewels and let him sit in his throne at times.
One day, as usual, during the disguise, the king stood at the gate, and Subha ascended the throne.
Seeing this smile, Subha said to the soldiers: "Embala, why is this immoral gatekeeper [Yassalalaka] laughing in front of me?