<Table> Franks <Tr> <Th_colspan="2"> Franci </Th> </Tr> <Tr> <Td_colspan="2"> Aristocratic Frankish grave goods from the Merovingian period </Td> </Tr> <Tr> <Th_colspan="2"> Languages </Th> </Tr> <Tr> <Td_colspan="2"> Old Frankish </Td> </Tr> <Tr> <Th_colspan="2"> Religion </Th> </Tr> <Tr> <Td_colspan="2"> Frankish paganism, Roman Catholicism </Td> </Tr> <Tr> <Th_colspan="2"> Related ethnic groups </Th> </Tr> <Tr> <Td_colspan="2"> Germanic tribes </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Franci </Th> </Tr>

Who was the king of the european empire