
The inscription means: 'I am Tanaquil. In my prescience I created two kings, first my husband, then my slave'.
Tanaquil persuaded her husband Lucumo to emigrate from Tarquinii to Rome, where he was elected king with the title Tarquinius Priscus. After his assassination she secured the succession for Servius Tullius.
This painting and 'Marcia' are part of a series representing famous women of antiquity.