Also called Sala de la Media Naranja by the form of its spectacular roof of gilded wood, built as far back as 1427 after the death of Pedro I, it was nevertheless the throne room of this king's palace. In this dazzling space the monarch would receive personalities of the time, such as the historian and traveler Ibn Khaldun, when he came to Seville to visit King Don Pedro as ambassador of Sultan Muhammad V of Granada.
The starry sky that crowns the hall keeps alive the memory of al-Turayya, the Hall of the Pleiades that the king poet al-Mutamid had built in the eleventh century because of his love of astrology and from which nothing remains. Cosmos and earth are connected poetically in the palaces of medieval Islam through the water, by reflecting the stars in the pond: when the stars are seen in it becomes the firmament where they are, said an ancient Abbasid poet. The sky represented in the dome, which can be reflected in the water at rest of the pond, is surrounded by an undulating decoration in the plasterwork and tiles of the walls of the room that again alludes to the water, in this case in motion.
The whole room can be seen as well as the metaphor of a pond and the element of nature that inspires both the garden and the Islamic ornamentation is water. Through it and the forms that it acquires at rest and in movement, the garden expands on the architecture, transfiguring the space in a wonderful world of joy for the senses, almost a mirage, characteristic of a monarch of oriental tastes like Pedro I.