Cassandra Trelawney

From Hpwiki

Cassandra Trelawney was a celebrated Seer in the wizarding world. Her great-great-granddaughter is Sybill Trelawney.

Word Origins: Cassandra (other spellings: Kassandra, Alexandra) is a seer in the Greek mythology, daughter of Priamos and Hekabe. When she rejects Apollon's move on her, he makes sure that nobody believes her predictions any longer.

Trelawney is a Cornish family tracing back to Saxon days. In 1668, Jonathan Trelawney became Dean of St Buryan, afterwards Bishop of Rochester, and one of the seven Bishops imprisoned in the Tower of London and subject of the great Cornish song "And shall Trelawney die." Apparently, the song is/was the Cornish National Anthem.