Hanging next to the cathedral's entrance are the “real” bones of Smok Waweleski, the local dragon. ... Before the city was founded Smok was said to live in a cave under one of Wawel's rolling hills. Smok was of the classic maiden-devouring ilk and the local people even had to put out a fresh young woman each month to quell his appetite.
According to legend he was finally killed by a local hero (or a local apprentice depending on the version), who fed Smok a lamb laced with sulfer. This made the beast so thirsty that he drank water from the river until he exploded.
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a local archosaur is named for it.