Under A Different Flag (CYOAH! Redux)

As we all know:

Christopher Columbus

Sailed the ocean blue

Discovered America

In 1492

This voyage was made possible by Isabella and Ferdinand, who had recently united the Iberian Kingdoms. However, Columbus proved to have a hard time of convincing anyone of his theory of a westward route to the Orient. He had previously asked several other monarchs for their support, all of which turned him down.

This begs the question:

What if Christopher Columbus discovered the new world Under a Different Flag?

By which name will history remember him?

Cristovao Colombo (Portugal)

Christoffa Corombo (Genoa)

Cristoforo Colombo (Venice)

Christopher Columbus (England)