I’m Julian, this is my friend Mary?
On the right is Mary I, the penultimate “Tudor” monarch. Her brief reign was a reaction to the Reformations of her father and brother, reintroducing the Catholicism that prevailed until twenty years earlier but she died without issue and her religious policy was reversed by her half-sister.
On the left is the Roman Emperor known as “Julian the Apostate”, the last of the Constantian dynasty to hold that title. Succeeding his cousin Constantius II in 361, he sought to restore Rome’s pagan gods that had prevailed until the 312 conversion of his uncle Constantine I, but died in battle within two years and his successors restored Christianity.