Palmela Palace
Cascais e Estoril, Portugal
The Palmela Palace (Palácio Palmela), also known as the Conceição Velha, was a summer residence in Cascais, Lisbon District, Portugal built for the Duke and Duchess of Palmela in 1874. It is considered to be a major example of the so-called summer architecture of the Cascais area.
Palace data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).