Philippines history would tell us that series of wars between Spanish authorities and the Moros lasted over several centuries starting 1500s till the 1800s. And that Spain initiated the conflict by conquering the Philippines and invading Moro territory in an effort to subjugate the region to their rule. And because of this, Moros raided and pillaged Spanish towns in some islands in the Philippine in retaliation for Spanish attacks, and terrorized the Spanish invaders with their constant piracy. It was said that Moro attacks were so persistent and successful that in many of the Visayan towns, almost half of the inhabitants were killed or enslaved. What motivated the Moros to wage war with Spanish authorities was to weaken Spanish capabilities in attacking Mindanao and Sulu.
A town 29 kilometers away south from the city, Guimbal got its name from a musical instrument called guimba. The Spaniards discovered the settlers using the instrument to warn the people of the coming of the raiding Moro pirates who used to loot the town and capture the natives to be sold as slaves in Mindanao. To show gratitude to the instrument, the inhabitants named their settlement Guimbal.