A Cloak of Coronation was a garment traditionally worn by a Peladonian monarch at their coronation. The original cloak had Aggedor fur, which came into the possession of Arla Decanto.
For the King's coronation, Barok employed Arla to make a Cloak of Coronation. She used the original Aggedor fur as well as silks woven from the webs of the last grey spider and included a star map in the lining which the Eighth Doctor claimed was of the sky as seen from Peladon; in fact, it was the sky as seen from Arcturus, resulting in Arla being accused of rebellion and imprisoned for three nights.
Upon her release, Arla completed the cloak and fitted it to the King, who wore it at its coronation. The pristine Aggedor fur was a far cry from that of the sickly Aggedors on the streets and provoked anger from the people. (AUDIO: The Truth of Peladon)