 It was also discovered that the weapons used in the assassinations were obtained by Gonçalo Heitor Freire (a republican and Freemason) through the Viscount of Ribeira Brava, one of the main conspirators.The arms used in the Library Elevator Coup plot, originally guarded in the Armazéns Leal, were transported to the viscount's home and hidden.After the plot failed, a group of 18 men met in a mansion in Xabregas on 30 or 31 December, where they plotted to assassinate the royal family.