thumb|Livonian lady (1502). Albrecht Dürer. thumb|Livonian knight in the 16th century Ferdinand I, Holy Roman Emperor once again asked for help of Gustav I of Sweden, and the Kingdom of Poland also began direct negotiations with Gustav, but nothing resulted because on 29 September 1560, Gustav I Vasa died. The chances for success of Magnus, (who had become Bishop of Courland and of Ösel-Wiek) in 1560 and his supporters looked particularly good in 1560 (and in 1570). In 1560 he had been recognised as their sovereign by the Bishopric of Ösel-Wiek and by the Bishopric of Courland, and as their prospective ruler by the authorities of the Bishopric of Dorpat; the Bishopric of Reval with the Harrien-Wierland gentry were on his side; the Livonian Order conditionally recognised his right of ownership of the (future) Duchy of Estonia. Then along with Archbishop Wilhelm von Brandenburg of the Archbishopric of Riga and his Coadjutor Christoph von Mecklenburg, Kettler, the last Master of the Teutonic Order, gave to Magnus the portions of the Kingdom of Livonia which he had taken possession of, but they refused to give him any more land.
thumb|Livonian lady (1502). Albrecht Dürer. thumb|Livonian knight in the 16th century Ferdinand I, Holy Roman Emperor once again asked for help of Gustav I of Sweden, and the Kingdom of Poland also began direct negotiations with Gustav, but nothing resulted because on 29 September 1560, Gustav I Vasa died. The chances for success of Magnus, (who had become Bishop of Courland and of Ösel-Wiek) in 1560 and his supporters looked particularly good in 1560 (and in 1570). In 1560 he had been recognised as their sovereign by the Bishopric of Ösel-Wiek and by the Bishopric of Courland, and as their prospective ruler by the authorities of the Bishopric of Dorpat; the Bishopric of Reval with the Harrien-Wierland gentry were on his side; the Livonian Order conditionally recognised his right of ownership of the (future) Duchy of Estonia. Then along with Archbishop Wilhelm von Brandenburg of the Archbishopric of Riga and his Coadjutor Christoph von Mecklenburg, Kettler, the last Master of the Teutonic Order gave to Magnus the portions of the Kingdom of Livonia which he had taken poss,ession of, but they refused to give him any more land.