John Frederick, Duke of Brunswick
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John Frederick (German: Johann Friedrich; 25 April 1625 in Herzberg am Harz – 18 December 1679 in Augsburg)[1] was duke of Brunswick-Lüneburg. He ruled over the Principality of Calenberg, a subdivision of the duchy, from 1665 until his death.
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John Frederick | |
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| Duke of Brunswick-Lüneburg Prince of Calenberg | |
 John Frederick, c. 1675, by Johann Hulsman | |
| Born | (1625-04-25)25 April 1625 Herzberg am Harz, Göttingen, Principality of Calenberg, Kingdom of Germany, Holy Roman Empire |
| Died | 18 December 1679(1679-12-18) (aged 54) Mixed Imperial City of Augsburg, Kingdom of Germany, Holy Roman Empire |
| Noble family | Hanover |
| Spouse(s) | Benedicta Henrietta of the Palatinate |
| Issue | Princess Charlotte Felicitas of Brunswick-Lüneburg Wilhelmina Amalia, Holy Roman Empress |
| Father | George, Duke of Brunswick-Lüneburg |
| Mother | Anne Eleonore of Hesse-Darmstadt |
The third son of George, Duke of Brunswick-Lüneburg, John converted to the Roman Catholic Church, the only member of his family to do so, in 1651, as a result of a visit while in Italy to Saint Joseph of Cupertino.[2] He received Calenberg when his elder brother George William inherited the Principality of Lüneburg. In 1666, he had a palace built in Herrenhausen near Hanover that was inspired by the Palace of Versailles and is famous for its gardens, the Herrenhausen Gardens.
In 1667, he employed as his master builder the Venetian architect Girolamo Sartorio, who designed many buildings in the town, including the Neustädter Kirche, and was instrumental in the expansion of the Herrenhausen Gardens.
In 1676, John Frederick employed Gottfried Wilhelm Leibniz as Privy Councillor and librarian of the important ducal library. Thus began Leibniz's 40-year association with the House of Hanover, which resulted in three generations of Hanovers being patrons to one of the most eminent philosophers and mathematicians of Europe.
 Funeral thaler for John Frederick, Duke of Brunswick-Lüneburg (1679)
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.jpg) John Frederick, ca. 1670, after Jean Michelin
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