The term "Lakan Dula Documents"[1] is used by Philippine historiographers to describe the section of the Spanish Archives in Manila which are dedicated to the genealogical records (cuadernos de linaje) of the Manila and Tondo aristocracy.
As of 2001, only one bundle of twelve folders (containing eleven distinct sets of documents) remains in the archive,[2] the rest having been lost, misplaced, or destroyed by various events such as the Japanese Occupation of Manila during World War II.
[1] Scholars specializing in the noble houses of Rajah Matanda, Rajahmuda, and Lakandula mostly use these documents in conjunction with the Archivo General de Indias (General Archive of the Indies) in Seville, Spain in studying the genealogies of these "noble houses.
"[2] Other primary sources frequently referred to by historiographers are the Silsila or Tarsilas of Sulu, Maguindanao, and Brunei, and local records (usually Catholic parish registers) of towns where descendants of the three houses may have moved.
[1] Number[2] Dates[2] [Real provision ordinaria para que alcalde mayor de la provincia de Bulacan cite y emplaze de los regulos Lacandola y Raja Soliman para que dentro de 30 diaz comparezcan en esta Real Audiencia a presentar los recaudos que dentro expresan.]