when over 500 orange, citrus and sour orange trees decorated the baroque garden, the Orangery regularly was the gorgeous scene of courtly festivities. Various artists were invited to decorate the interior of the palace. As the court painter of Friedrich I, the Flemish artist Jan Anthonie Coxie was commissioned to paint the walls and ceilings in various rooms of the palace. Coxie painted between 1701 and 1713 frescos and an altarpiece in the Palace Chapel and frescos in the Gobelin Gallery and Porcelain Room. The frescos in the Porcelain Room were blatant propaganda for the glorious rule of Friedrich I. They represent Aurora, the Goddess of Dawn, in her seven-horsed chariot chasing away Night and clearing the way for the Sun-God Apollo, who approaches in his chariot in a blaze of light. Hovering overhead, Mercury heralds the arrival of the life-giving god and Saturn ushers in the Golden Age with his scythe. Coxie also included images of the Four Continents as well as the Four Seasons, which are familiar allusions to political power and thus affirm the greatness of Friedrich I. Inside the palace, was a room described as "the eighth wonder of the world", the Amber Room (Bernsteinzimmer), a room with its walls surfaced in decorative amber. It was designed by Andreas Schlüter, and its construction by the Danish amber craftsman Gottfried Wolfram started in 1701. Friedrich Wilhelm I gave the Amber Room to Tsar Peter the Great as a present in 1716. When Friedrich I died in 1713, he was succeeded by his son, Friedrich Wilhelm I whose building plans were less ambitious, although he did ensure that the building was properly maintained. Building was resumed after his son Friedrich II (Frederick the Great) came to the throne in 1740. During that year, stables for his personal guard regiment were completed to the south of the Orangery wing and work was started on the east wing. The building of the new wing was supervised by Georg Wenzeslaus von Knobelsdorff, the superintendent of all the Royal Palaces, who largely followed Eosander's design. The decoration of the exterior was relatively simple but the interior furnishings were rich with painting and sculpture, textiles, and mirrors. The ground floor was intended for Frederick's wife Elisabeth Christine, who, preferring Schönhausen Palace however, was only an occasional visitor. The especially splendid decoration of the upper floor, which included the White Hall, the Banqueting Hall,