Even though the guilds enjoyed royal protection, the relationship between the Crown and the corporation was not always amicable. Two notable examples are the disestablishment of the House of the Twenty-Four of Lisbon by King Manuel I in 1506, as punishment for the disruption of public order that resulted in the Easter Slaughter (the House was only reestablished by King John III in 1508, after substantial reform), and the disestablishment of the House of the Twenty-Four of Porto in 1661, when it was accused of taking part in the riots against the tax on stamped paper created by Luisa de Guzmán, Queen Regent (it was restored in 1668), and again in 1757, after opposition to the General Company of Agriculture of the Wines of the Upper Douro (it was restored in 1795).