Freshwater Castle is a medievil vertion of Freshwater High, that includes many look-a-like of the Fish Hooks character, a unicorn and a dragon fish in Fishtania.
Milo the Meek
Milo the Meak (or also known as the other Milo) is the medieval version Milo.
When Oscar had his own Medevil "Dream", Principal Stickler's counterpart was King Stickler, who told Oscar to save Esmarpunzel and defeat Joustapus. When Alberts counterpart came, he told King Stickler that Clamantha Princess is captured. King Stickler tells Oscar to save her.