Alfonso IV d'Este was Duke of Modena and Reggio from 1658 until his death. He was the father of Mary of Modena, consort of James II of England.
Alfonso was born in Modena, the eldest son of Francesco I d'Este, Duke of Modena, and his first wife,... Wikipedia
Born: October 14, 1634, Palazzo Ducale di Modena, Modena, Italy
Died: July 16, 1662 (age 27 years), Modena, Italy
Grandchildren: James Francis Edward Stuart, Louisa Maria Stuart, Isabel Stuart, and more
Children: Francesco II d'Este and Mary of Modena
Spouse: Laura Martinozzi (m. 1655)
Parents: Francesco I d'Este and Maria Caterina Farnese
Great grandchildren: Charles Edward Stuart and Henry Benedict Stuart
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