Cadalan

adjective1

1. •
   (historical) Relating to Peter Cadalus (c. 1010 – 1072), antipope as Honorius II from 1061 to 1072.

   • Cencius had also actively supported the anti-pope Honorius II, and the Castel S. Angelo, which he controlled was a bastion of the Cadalan party. — 1998