What is "namayan"

Namayan (also called the Sapa, Maysapan or Nasapan, and sometimes Lamayan, and often anachronistically referred to as a "Kingdom") was one of three major polities that dominated the banks of the Pasig River and the coast of Laguna de Bay in the Philippines prior to the Spanish conquest in the 16th century.

Namayan is said to be the oldest of the three polities, predating the historical polities of Tondo and Maynila. Formed by a confederation of barangays, it is said to have achieved its peak in 1175.