 Following the European Protestant Reformation and with the encouragement of the Convention of Royal Burghs, the 14 incorporated trade crafts federated as the Trades House in 1605 to match the power and influence in the town council of the earlier Merchants' Guilds who established their Merchants House in the same year.Glasgow was subsequently raised to the status of Royal Burgh in 1611.Glasgow's substantial fortunes came from international trade, manufacturing and invention, starting in the 17th century with sugar, followed by tobacco, and then cotton and linen, products of the Atlantic triangular slave trade.