Io changed into a cow: to avoid detection by Juno, Jupiter changes Io into a cow (Ovid, Metamorphoses I 611)

Jupiter vergrijpt zich aan Io

workshop of Hendrick Goltzius, 1589

Jupiter, Juno en Io

Pieter van Gunst (mentioned on object), 1659 - 1731

Jupiter en de koe

Crispijn van de Passe (I), 1602 - 1607