Philippine islands, the people Panay and the other Christianized peoples of the archipelago were converted and reformed and they abandoned the practice of slaving, piracy and raiding and contented themselves to be simple soldiers or farmers. In 1581, Ronquillo moved the colonial center from Ogtong to approximately eastward due to recurrent raids by Moro pirates and Dutch and English privateers. He renamed this new colonial seat La Villa Rica de Arévalo in honor of his hometown in Ávila, Spain. Ronquillo also settled groups of Spanish and Mexican soldiers to become the first colonists of Arevalo as he built his mansion in the area. The Chinese traders supplying the colonists then established themselves in Iloilo's parian Molo. Meanwhile, Jaro was soon filled up with various kinds of mestizos (Mixed raced people) and Mandurriao hosted the growing Indian community near the Nanak Darbar Indian Sikh Temple. In the early days of the Spanish period; the first Manila Galleons were originally constructed at the port of Oton to the west of Iloilo. Since there was no precedent in Spain for the immensity of a Manila-Galleon, it could be argued that the proto-type Manila galleons were of Visayan design since the Visayans were already constructing huge multi-masted 4 to 5 decked caracoas in their wars against the other kingdoms and thus, the technical know-how to construct the first Manila galleons was an amelioration of Visayan shipbuilding with Spanish shipbuilding. Oton built the first Manila galleons before operations were eventually transferred to the Bicol and Cavite shipyards. 1600s–1700s In the year 1600, a large Muslim attack on Iloilo City was launched, with a force of 70 ships and 4,000 warriors, raiding and attacking several Visayan islands in order to abduct slaves. However, the attack was repulsed by a force of 1,000 Visayan warriors and 70 Mexican arquebusiers under the command of the Don Juan Garcia de Sierra (the Spanish alcalde mayor), who died in battle. With the increase in Moro incursions toward the end of the sixteenth century, Spanish defenses in the Visayas were strengthened by the construction of a fort at Iloilo staffed by two companies of (Mexican) soldiers. In 1635, in an effort to check the Islamic slave-raiding into the Visayas islands, the Christian Visayans from Iloilo together with Spanish officers and their Latino soldiers from Peru soon founded Zamboanga City and settled in it, using it as a fortress to prevent Moro