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Valeria Messalina was the mother of Claudia Octavia. She was a Roman noblewoman and the third wife of Emperor Claudius. She was also the mother of Claudius's son, Britannicus, and his daughter, Claudia Antonia. Messalina was known for her beauty and her wild lifestyle. She was also accused of adultery and murder. She was eventually executed by Claudius in 48 AD.