On the return from the mission, however, the envoys endured pirate attacks and great storms, and it is said that the harrowing experience had a deleterious effect on Zhao's constitution. He died four years later. | On the return from the mission, however, the envoys endured pirate attacks and great storms, and it is said that the harrowing experience had a deleterious effect on Zhao's constitution. He died four years later. |