Dr. Montano, an eminent scientist sent by the French government to Sulu, describes the entry into the city of Tianggi of eleven juramentados during the Spanish occupation:
'Divided into three bands, they crept into town, pursuing a frenzied course. Hearing the cry of "Los Juramentados", the soldiers seized arms. The juramentados rushed upon them fearlessly with krises. One of them struck in the breast by a bullet, rose and flung himself upon the troops. Transfixed by a bayonet, he remained erect, trying to reach his enemy who held him impaled. Another soldier ran up and blew out his brains before he dropped. When the last juramentado had fallen and the corpses were picked up from the street, it was found that fifteen Spaniards had been hacked to pieces and many wounded. And what wounds! The head of one Spaniard was cut off as clean as if with a razor and another was cut almost in two."