<Tr> <Td_colspan="2"> Capital </Td> <Td> Lisbon (1415--1808 / 1821--1999) Rio de Janeiro (1808--1821) </Td> </Tr> <Tr> <Td_colspan="2"> Religion </Td> <Td> Roman Catholicism </Td> </Tr> <Tr> <Td_colspan="2"> Government </Td> <Td> Colonialism </Td> </Tr> <Tr> <Td_colspan="2"> Monarchs </Td> <Td> <Ul> <Li> (1415--1433) João I </Li> <Li> (1908--10) Manuel II </Li> </Ul> </Td> </Tr>

Empire played the least prominent role in which of the following regions