High Quality Content by WIKIPEDIA articles! Pacto de Sangre (Eng.: Pact of Blood) is the title of a studio album released by norteno ensemble Los Tigres del Norte. This album became their fifth number-one set on the Billboard Top Latin Albums.Los Tigres del Norte (The Tigers of the North in English) is a norteno-band ensemble of naturalized Mexican-Americans, hailing from Rosa Morada, Sinaloa, Mexico.The group was started by Jorge Hernandez, his brothers, and his cousins. They began recording after moving to San Jose, California in the late 1960s, when all the members were still in their teens.