The Code of Rajah Kalantiaw was a supposed legal code in the epic history Maragtas that is said to have been written in 1433 by Datu Kalantiaw, a chief on the island of Negros in the Philippines. It is now generally accepted by historians that the documents supporting the existence and history of the code, according to some sources, “appear to be deliberate fabrications with no historical validity" written in 1913 by a scholar named Jose Marco as a part of a historical fiction titled Las antiguas leyendas de la Isla de Negros.

Aklan, officially the Province of Aklan, is a province in the Western Visayas region of the Philippines. Its capital is Kalibo. The province is situated in the northwest portion of Panay Island, bordering Antique to the southwest, and Capiz to the southeast. Aklan faces the Sibuyan Sea and Romblon province to the north.