He was said to have left his settlement to visit Rajah Humabon in Bohol. Together, they visited Limasawa where a fleet of Spanish galleons headed by Ferdinand Magellan landed. Rajah Siagu invited Magellan to visit his place.
Ruling brothers Rajah Siagu and Rajah Kolambu kissed the cross and prayed with the crew in the first mass in the Philippines in March 1521. They forged a blood compact with Magellan who had claimed ownership of the islands in the name of King Charles. Magellan had named it on 16 March 1521 as the Archipelago of Saint Lazarus.
According to some sources, Siagu gave provisions to the ships of Magallanes thus, in gratitude, his people were exempted from paying tribute to the King of Spain.
- Anchi Hoh.“Catholicism in the Philippines during the Spanish Colonial Period 1521-1898”.Library of Congress.(Accessed on 10 February 2021).
- “The Blood Compact”.Bohol-Philippines.com.(Accessed on 10 February 2021).
- “Historical Development”.Lalawigan ng Agusan del Norte.(Accessed on 10 February 2021).