and declares himself a Buddhist. Births Al-Mada'ini, Muslim scholar and historian (d. 843) Irene of Athens, Byzantine empress (approximate date) Joannicius the Great, Byzantine theologian (d. 846) Zheng Yin, chancellor of the Tang Dynasty (d. 829) Deaths March 15 – Zachary, pope of the Catholic Church March 26 – Stephen, pope of the Catholic Church Lupus, duke of Spoleto (Italy) Teudebur, king of Alt Clut (Scotland) References