Enrique III el Negro
This entry describes Zemuzil's attendance of a meeting with Henry III, Holy Roman Emperor in Merseburg ("Mersiburc") on 24 June 1046, along with Bretislaus I, Duke of Bohemia ("Bratizlao dux Boemorum") and Casimir I of Poland ("Kazmir Bolaniorum"). The dukes "honored the emperor with decent gifts", which according to Schmidt (2009) was the payment of tribute. In a second meeting on 29 June in Meißen ("Mihsin"), according to the document, the "aforementioned dukes" concluded a mutual peace agreement.