Tombs of the Blind Dead

Legend has that in the abandoned medieval town of Berzano, at the border between Spain and Portugal, the Knights Templar (a fictionalized version of the real-life order that was dissolved in the 14th century following charges of witchcraft and heresy) leave their tombs at night and come back from the dead as revenants. The reanimated corpses are blind, because their eyes were pecked out by birds while their hanged bodies rotted on the gallows.