<Tr> <Td> </Td> <Td> </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> </Td> <Td> </Td> <Td> </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> </Td> <Td> </Td> <Td> </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> </Td> <Td> </Td> </Tr> <Tr> <Td_colspan="2"> </Td> <Td> </Td> <Td> </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> </Td> <Td> </Td> <Td> </Td> <Td_colspan="2"> </Td> <Td> </Td> <Td> </Td> <Td_colspan="2"> </Td> <Td> </Td> <Td> </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> </Td> <Td> </Td> <Td> </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> </Td> <Td> </Td> <Td> </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> </Td> <Td> </Td> </Tr> <Tr> <Td_colspan="6"> Anne of Austria 1601--1666 </Td> <Td_colspan="2"> </Td> <Td_colspan="6"> Louis XIII of France 1601--1643 </Td> <Td_colspan="2"> </Td> <Td_colspan="6"> Elisabeth of France 1602--1644 </Td> <Td_colspan="2"> </Td> <Td_colspan="6"> Philip IV of Spain 1605--1665 </Td> <Td> </Td> <Td> </Td> <Td_colspan="2"> </Td> <Td_colspan="6"> Maria Anna of Spain 1606--1646 </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> </Td> <Td_colspan="6"> Ferdinand III Holy Roman Emperor 1608--1657 </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> </Td> </Tr>

Why was the change in dynasties in spain from hapsburg to bourbon so important