Count of Cantanhede (in Portuguese Conde de Cantanhede) was a Portuguese title of nobility created by a royal decree, dated from 6 August 1479, by King Afonso V of Portugal, and granted to D. Pedro de Menezes, 5th Lord of Cantanhede.
In the 17th century this family received new honours: a royal decree of King Afonso VI of Portugal, issued on 11 June 1661, created the title of Marquis of Marialva (in Portuguese Marquês de Marialva) and granted it to D. António Luís de Menezes, 3rd Count of Cantanhede.
Once the 6th Marquis of Marialva died without issue, these two titles are today represented by the 7th Duke of Lafões, Afonso Caetano de Barros e Carvalhosa de Bragança (born 1956), descendant of D. Henriqueta Maria Júlia de Lorena e Menezes, eldest sister to the late 6th Marquis of Marialva. The title is nowadays used by D. Diogo de Bragança, uncle of the 7th Duke of Lafões.
The family name associated with these titles was Menezes.
”Nobreza de Portugal e do Brasil" – Vol. II, pages 281/284; Vol III, pages 533-538. Published by Zairol Lda., Lisbon 1989.