Kurš apprecējās ar Francesco Maria de' Medici, Duke of Rovere and Montefeltro?

Francesco Maria de' Medici (12 November 1660 – 3 February 1711) was a member of the House of Medici. He was successively a Governor of Siena, and later the heir of the duchy of Montefeltro by right of his mother. He was also a cardinal of the Catholic Church from the years of 1660 until 1709, participating in the papal conclaves of 1689, 1691, and 1700.

Eleonora Luisa Gonzaga (13 November 1686 – 16 March 1741) was the Duchess of Rovere and Montefeltro as the wife of Francesco Maria de' Medici. She was the eldest child of Vincenzo Gonzaga, Duke of Guastalla and Sabbioneta and his second wife, Princess Maria Vittoria Gonzaga of Guastalla (1659-1707). She did not bear any children.