[2] The Countship of Fernán Núñez granted in 1639 to Alonso Gutiérrez de los Ríos was elevated to a dukedom in 1817 in the person of Carlos Gutiérrez de los Ríos, who became the 1st Duke of Fernán Núñez.

The name makes reference to the municipality of Fernán Núñez, in Cordoba, Spain.

It is one of the most important buildings of civil character in the province of Córdoba, declared an Asset of Cultural Interest in 1983.

Of neoclassical architecture, it was built by the 6th Count of Fernán Núñez, during his time as ambassador in Portugal.

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