The Palau de Lloctinent is a building located in Barcelona, Spain. It is situated in Plaça del Rei and is part of the Barcelona City History Museum, which is also known as the Museu d'Història de Barcelona. The Palau de Lloctinent was originally built in the 16th century and served as a residence for high-ranking officials of the Catalan government. It is known for its impressive Gothic architecture and is one of the significant historical buildings in Barcelona. The building is not specifically mentioned in the provided itinerary.