First volume in the "Collections in Focus | National Palaces" series, an open-access digital publishing initiative whose aim is the dissemination of the results of recent research, studies and discoveries on the holdings of the Royal Palaces of Sintra, Queluz and Pena.

The study focuses on an emblematic painting from the collections of the Royal Household, a court portrait acquired in the time of Queen Maria Pia of Savoy about which little detail existed in terms of authorship, dating, context surrounding its production, prior whereabouts, the acquisition process and its incorporation into the royal collections as the “Portrait of King Sebastião of Portugal”.

This monograph counted upon the collaboration of the Norton Simon Museum (Pasadena, California, USA) and the Prado National Museum (Madrid, Spain).