Oct 09, 2011 · As the Imperium is structured as a feudal society, it stands to reason that within it exist many types of noble houses, including planetary rulers, military lords, and the Rogue Traders. Over time, once the Warrant of Trade has been given, a Rogue Trader may find that his empire is growing. The world's biggest rogue traders in recent history - CNN.com Sep 15, 2011 · The world's biggest rogue traders in recent history. -- UBS announced Thursday that rogue trading by one of its investment bank traders had cost the Swiss banking giant a …