The Confederation of Madya-as was a legendary pre-colonial supra-baranganic polity on the island of Panay in the Philippines. It was mentioned in Pedro Monteclaro's book titled Maragtas. It was supposedly created by Datu Sumakwel to exercise his authority over all the other datus of Panay. Like the Maragtas and the Code of Kalantiaw, the historical authenticity of the confederation is disputed, as no other documentation for Madya-as exists outside of Monteclaro's book. However, the notion that the Maragtas is an original work of fiction by Monteclaro is disputed by a 2019 Thesis, named "Mga Maragtas ng Panay:Comparative Analysis of Documents about the Bornean Settlement Tradition" by Talaguit Christian Jeo N. of the De La Salle University who stated that, "Contrary to popular belief, the M