Ralph Shaa
Ralph Shaa,, was a 15th-century English theologian, the half-brother of the Lord Mayor of London, Edmund Shaa. Shaa played a minor but pivotal role in the Wars of the Roses by preaching a sermon on June 22, 1483 which claimed that Edward IV had already been betrothed to Eleanor Butler at the time of his marriage to Elizabeth Woodville, and that Edward V was therefore illegitimate and had no claim to the throne.
Shaa is mentioned as "Doctor Shaw" in Shakespeare's play Richard III.
