<Tr> <Th> No . overall </Th> <Th> No. in season </Th> <Th> Title </Th> <Th> Directed by </Th> <Th> Written by </Th> <Th> Original air date </Th> <Th> U.S. viewers (millions) </Th> </Tr> <Tr> <Th> 45 </Th> <Td> </Td> <Td> "Three Queens, Two Tigers" </Td> <Td> Holly Dale </Td> <Td> Laurie McCarthy </Td> <Td> October 9, 2015 (2015 - 10 - 09) </Td> <Td> 0.95 </Td> </Tr> <Tr> <Td_colspan="7"> In England, Catherine and Elizabeth send messengers to Rome to expose Mary's affair with Louis, but the messengers are quietly assassinated by the Vatican . Mary and Francis are in need of resources, and engage a privateer named Martin (Sameer Usmani) to steal for them . Martin tricks Greer, who has returned to court, into having sex with him . Elizabeth, as advised by Catherine, sends a proposal to France for her marriage to Francis's younger brother Charles (Spencer MacPherson). Francis refuses and reveals to Mary that he is dying, so Charles will soon become the new King of France . However, Mary and Francis pretend to accept the proposal, providing a diversion so their spies can kidnap Catherine and bring her back to France for imprisonment . Elizabeth is having an affair with her subject, commoner Robert Dudley (Charlie Carrick), while Robert's wife, Amy (Clara Pasieka) starts an affair with Elizabeth's adviser William (Tom Everett Scott) as part of a plan to get her husband back . Narcisse wants to court Lola but is forbidden by Francis . Delphine, still a fugitive, tells Bash that she's innocent of the murder she's accused of, and that the true murderer is still in the castle . </Td> </Tr> <Tr> <Th> 46 </Th> <Td> </Td> <Td> "Betrothed" </Td> <Td> Fred Gerber </Td> <Td> Lisa Randolph </Td> <Td> October 16, 2015 (2015 - 10 - 16) </Td> <Td> 1.00 </Td> </Tr>

Who plays prince charles in reign season 3