On 26 May 1555, Agnes married her second husband, Duke John Frederick II of Saxony.
Elizabeth of the Palatinate (born: 30 June 1540 in Birkenfeld; died: 8 February 1594 in Wiener Neustadt) was the second wife of Duke John Frederick II of Saxony.
He came from a peasant family and experienced a youth shaped by military turmoil during the Smalcaldic War, with the siege of Gotha by the Elector Augustus of Saxony.
He participated in the siege of Gotha, which was necessary to arrest the deposed Duke John Frederick II of Saxe-Coburg-Eisenach, who had been banned for failure to deliver Wilhelm von Grumbach at the Emperor's demand.
In 1554, after the death of his father, John William inherited the duchy of Saxony with his older brother, John Frederick II, and his younger brother, John Frederick III.
1558 Duke John Frederick II of Saxony (1529–1595)
He became the personal physician of John Frederick II, Duke of Saxony, remaining at Gotha until the surrender of the city on 13 April 1567.
In June 1560, he participated in a disputation with Saxon Lutherans from the court of John Frederick II on the Lord’s Supper, chiefly against Johann Stössel.
The duchy was created by the Division of Erfurt in 1572 which implemented a decision of the Diet of Speyer in 1570 to separate Coburg and Eisenach from the Duchy of Saxe-Weimar and give them to John Casimir and John Ernest, the two sons of John Frederick II.
Upon his death in 1554, his son John Frederick II succeeded him as "Duke of Saxony", residing at Gotha.
John Frederick II, Duke of Saxony (b. Torgau, 8 January 1529 – d. as imperial prisoner at Schloss Steyr, Upper Austria, 19 May 1595);
Meanwhile he had found a new patron in the Wettin duke John Frederick II of Saxony, whose father, John Frederick I had been obliged by the 1547 Capitulation of Wittenberg to surrender the electoral dignity to the Albertine cadet branch of his family.
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