Deaths on December 19

Sancho I, king of León

Sancho I of León, nicknamed Sancho the Fat (c. 932 – 19 December 966) was a king of León twice.

14 Apr

History of Poland during the Piast dynasty
After his marriage to the Christian Doubravka of Bohemia, the pagan ruler of the Polans, Mieszko I, converts to Christianity, an event considered to be the founding of the Polish state.