Master of the Sacred Palace
The Master of the Sacred Palace was a Dominican friar following the Borgia. He ensured that all religious philosophies remained the most common source of knowledge.[1]
In 1500, Nicolaus Copernicus, a fellow Templar, shared his knowlegde on science with the public, which wasn't allowed to do by the Templar Order. Thus, the Master of the Sacred Palace sent several guards to kill Copernicus and his fellow scholars. All but one of the scholars were saved by Ezio Auditore da Firenze by Copernicus' request. Copernicus explained that the Master of the Sacred Palace was the most likely source of the attacks, so Ezio eventually tracked him down and killed him. Before his death, the Master of the Sacred Palace explained that Ezio was too late to save him, as he had already sent some guards to kill him. However, Ezio did manage to rescue Copernicus from the assassin.[1]