Salon de Embajadores, meaning The Ambassadors Reception Room, was the main room that King Peter of Castile used for his stay at the Alcazar. This room was the most richly decorated within the entire Alcazar Palace, which was in keeping with its role of power. In 1526, Emperor Charles V and Isabella of Portugal celebrated their marriage in this room.. Arch access to the Ambassadors Reception Room, Alcazar of Sevill