Don Ettore IV Pignatelli, 4.Principe di Noia, Duca di Monteleone

Ettore Pignatelli, 4th Prince of Noia, 5th Duke of Monteleóne (17 June 1620 – 8 March 1674) was an Italian nobleman.

Early life Pignatelli was born on 17 June 1620 at Senise, Basilicata in Southern Italy, into the House of Pignatelli, one of the most aristocratic families of the Kingdom of Naples. He was a younger son of Fabrizio Pignatelli, 3rd Prince of Noia (1604–1664) and Girolama Pignatelli, Duchess of Monteleóne (1599–1667). His elder brother was Giulio Pignatelli, Duke of Terranova (who married Giulia Mastrantonio Bardi), who died without issue.

His paternal grandparents were Giulio Pignatelli, 2nd Prince of Noia, and, his first wife, Zenobia Pignatelli (a daughter of Giacomo Pignatelli, Lord of Castellaneta). From his grandfather's fourth marriage in 1638 to Beatrice Carafa, his paternal uncles (although nearly two decades younger than Ettore) were Niccolò Pignatelli, Duke of Monteleone, and Cardinal Francesco Pignatelli, who was nearly elected Pope in 1721, but Spain vetoed his candidature. His maternal grandparents were Héctor Pignatelli y Colonna, 4th Duke of Monteleone, and Caterina Caracciolo (a daughter of Carlo Caracciolo, 6th Count of Sant'Angelo).

Career Upon the death of his father in 1664, he succeeded as the 4th Prince of Noia. From his mother, he inherited her family's title, becoming the 5th Duke of Monteleóne. Mariana Pignatelli d'Aragon (b. 1643), who married Jaime Francisco Sarmiento de Silva, 5th Duke of Híjar, 8th Count of Belchite, a direct descendant of Juan Francisco Fernández de Hijar. Geronima Pignatelli d'Aragon (1644–1711), who married Francesco Marino Caracciolo, 4th Prince of Avellino. Giovanna Caterina Pignatelli d'Aragon (b. 1645), who married Francesco IV Rodrigo Ventimiglia, 5th Prince of Castelbuono. Estefanía Pignatelli d'Aragon (b. 1667), who married Fernando de Zúñiga y Enríquez de Acevedo, 5th Duke of Peñaranda, 9th Count of Miranda.

Pignatelli died on 8 March 1674 at Madrid, in the Kingdom of Spain. Together, Ettore and Juana established a dynasty that assembled the immense wealth of the Aragonas, the Tagliavias, the Pignatellis and the Cortés, their titles and their fiefs.