 On June 10, 1570 the Danish Duke Magnus of Holstein arrived in Moscow, where he was crowned King of Livonia.Magnus took the oath of allegiance to Ivan as his overlord and received from him the corresponding charter for the vassal kingdom of Livonia in what Ivan termed his patrimony.The treaty between Magnus and Ivan IV was signed by an oprichnik and by a member of the "zemskii" administration, the d'iak Vasiliy Shchelkalov.