Datu Sikatuna was the Datu

Datu

Datu is the title for tribal chiefs, sovereign princes, and monarchs in the Visayas and Mindanao Regions of the Philippines. Together with Lakan , Apo in Central and Northern Luzon, Sultan and Rajah, they are titles used for native royalty, and are still currently used in the Philippines...

 (lord) in the island of Bohol

Bohol

Bohol is an island province of the Philippines located in the Central Visayas region, consisting of Bohol Island and 75 minor surrounding islands. Its capital is Tagbilaran City. With a land area of and a coastline long, Bohol is the tenth largest island of the Philippines...

 in the Philippines

Philippines

The Philippines , officially known as the Republic of the Philippines , is a country in Southeast Asia in the western Pacific Ocean. To its north across the Luzon Strait lies Taiwan. West across the South China Sea sits Vietnam...

. His real name was "Katuna" but "Si" was added to his name as this is a nominative marker for a Filipino. He made a blood compact ("Sandugo

Sandugo

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...

") and alliance with the Spanish

Spain

Spain , officially the Kingdom of Spain languages]] under the European Charter for Regional or Minority Languages. In each of these, Spain's official name is as follows:;;;;;;), is a country and member state of the European Union located in southwestern Europe on the Iberian Peninsula...

 explorer Miguel López de Legazpi

Miguel López de Legazpi

Miguel López de Legazpi , also known as El Adelantado and El Viejo , was a Spanish conquistador who established one of the first European settlements in the East Indies and the Pacific Islands in 1565. He is the first Governor-General in the Philippines...

 on March 16, 1565 near the modern town of Loay

Loay, Bohol

Loay is a 5th class municipality in the province of Bohol, Philippines. According to the 2007 census, it has a population of 15,881 people. The population has 2 parts, the lower and the upper parts. The lower part used to be called Canipa-an because of the presence of nipa swamps in this part of...

.

There is a monument commemorating this pact called The Sandugo Blood Compact Site, which is located in the Bool district of Tagbilaran City.