The group which was exclusively part of this estate was the impoverished group. The Third Estate compromised of the proletariat, which were commoners and peasants who worked on the land. The Third Estate is part of the Estates of the Realm which were the broad social orders of the hierarchically conceived society, common during the Middle Ages and Early Modern Period in Christian Europe.
The gold was used by the Spanish monarchy to pay off its debts and also to fund its 'religious' wars. Therefore, gold started to trickle out to other European countries who benefited from the Spanish wealth