
The British house has a baronage. Not sure what the French house is, but it wouldn't be a baronage.
The Rothschilds were the banking conglomerate at the head of the entire Jewish lending industry, about as close to Jewish royalty as any have come since Hezekiah. They financed many European governments and projects right around WWI, but do not have anywhere near that influence today.
Don't let conspiracy theories carry you away. The new world order is democracy.