Count of Idanha a Nova

Count of Idanha-a-Nova was a Portuguese title of nobility created on 17 June 1892 by Charles I of Portugal.

Counts:

1.Jerónimo Trigueiros de Aragão Martel da Costa, 1st Count of Idanha-a-Nova

2.Joaquim Trigueiros Osório de Aragão, 2nd Count of Idanha-a-Nova

3.Joaquim Maria Trigueiros Coelho Frazão Osório de Aragão Martel, 3rd Count of Idanha-a-Nova

4.Maria de la Salette Trigueiros Coelho Frazão Osório de Aragão Martel, 4th Count of Idanha-a-Nova