Alderano Cybo-Malaspina (1552–1606)

Alderano Cybo-Malaspina (9 December 1552 in Massa – 16 November 1606 in Ferrara) was an Italian nobleman.

He was marquess of Carrara, count of Ferentillo, first Duke of Ferentillo from 1603, Roman Patrician and Genoese Patrician, Patrician of Pisa and Florence, Patrician of Naples and Noble of Viterbo.

He was the only son of Alberico I, member of the House of Cybo-Malaspina, sovereign prince of Massa and Carrara, by his first wife, Elisabetta della Rovere (d. 1561), but, despite being Alberico's heir, he never ascended the throne, having predeceased his father.

His advisors decided he should marry into the House of Este and so in 1580 he married Marfisa d'Este in Ferrara.

She was the illegitimate but legitimised daughter of Francesco d'Este.