<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> 21 </Th> <Td> </Td> <Td> "Valar Dohaeris" </Td> <Td> Daniel Minahan </Td> <Td> David Benioff & D.B. Weiss </Td> <Td> March 31, 2013 (2013 - 03 - 31) </Td> <Td> 4.37 </Td> </Tr> <Tr> <Th> 22 </Th> <Td> </Td> <Td> "Dark Wings, Dark Words" </Td> <Td> Daniel Minahan </Td> <Td> Vanessa Taylor </Td> <Td> April 7, 2013 (2013 - 04 - 07) </Td> <Td> 4.27 </Td> </Tr> <Tr> <Th> 23 </Th> <Td> </Td> <Td> "Walk of Punishment" </Td> <Td> David Benioff </Td> <Td> David Benioff & D.B. Weiss </Td> <Td> April 14, 2013 (2013 - 04 - 14) </Td> <Td> 4.72 </Td> </Tr>

Where do the names in game of thrones come from