<Tr> <Td> <Ul> <Li> Trent </Li> <Li> Vatican I </Li> <Li> Vatican II </Li> </Ul> </Td> </Tr> <Ul> <Li> Trent </Li> <Li> Vatican I </Li> <Li> Vatican II </Li> </Ul> <Tr> <Td> Catholicism portal </Td> </Tr> <Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr>

What was the purpose of the council of trent