Wikipedia
The Sandugo was a blood compact, performed in the island of Bohol in the Philippines, between the Spanish explorer Miguel López de Legazpi and Datu Sikatuna the chieftain of Bohol on March 16, 1565, to seal their friendship as part of the tribal tradition. This is considered as the first treaty of friendship between the Spaniards and Filipinos. "Sandugo" is a Visayan word which means "one blood".
The Sandugo is depicted in both the provincial flag and the official seal of the government in Bohol. It also features the image of the blood compact. The top of the seal explains the history behind the Sandugo event that occurred in Bohol, the fleet and the location where the Spaniards anchored and the place where the treaty was conducted which was dated on March 16, 1565.
Sandugo is a Filipino superhero team created by Gener Pedrina. In most incarnations, its roster includes several Filipino characters mostly based on myths and thus many of them are easily recognizable to the viewing public.
The original, line-up is Sandata, Supremo, Diwata, and Sidapa. The team was assisted by Bernardo Karpio also known as the Maharlikan God Malyari, who became the first hero to be invited by the four founders. The team soon included Narra, Alamid, Lam-ang, Anino, Adarna and reservists Bato and Datu Pag-asa.
The team made its debut in Handicrapcomix #5 (1997). Although the team hasn't really been in publication, Sandugo had its small following due to its internet presence and commissioned fanart from fans and well-known Filipino artists. The team has been well received since inception. It was even included in the well known website internationalhero.co.uk that spotlights other countries characters aside from the big two mainstream publishers of the same genre.
The team's concept was loosely based on the sanduguan ritual ( blood compact) done by recruited Katipuneros who fought the Spanish occupation in Philippine History as their oath to the movement.