Azzo I da Correggio
Azzo I da Correggio (died 1400) was a condottiero, count of Casalpò from 1341 and lord of Guastalla, the son of Guido IV. He served the Visconti of Milan until he fell out with Luchino Visconti over Guastalla in 1346, and in 1354 led Guardasone in revolt against Milan.
Turning against the Este in 1357, he was imprisoned until 1372, when his son Guido seized Correggio. Gian Galeazzo Visconti took Casalpò in 1397 and destroyed his castle the next year; Azzo died there in 1400.