<Tr> <Td> </Td> <Td_colspan="4"> 8 . Leopold III, Duke of Austria </Td> <Td_colspan="3"> </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="4"> 17 . Joanna of Pfirt </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr>

Who were austrian rulers of the holy roman empire and the netherlands