First Battle of Byss

The battle was held in the Clone Wars.

The Battle
Cat transports unloaded troops and vehicles, meanwhile a secret CIS outpost was destroyed. Many buildings were blown up by fighters as the invaders entered the city. The clone forces were easily dealt with. Jedi were sent to investigate, but were killed a few minutes after entering the system. Soon the Catpire had complete control over the planet. Walkers blew up the clone outpost.

Aftermath
A tower was built, the Catporer's Tower. It was made of black marble. Life went on as normal for the citizens after the invasion.