Salsilas or tarsilas are family heirlooms that trace one's line of descent; they are used to ascertain noble lineages that may go back to the days of the Kabungsuan. For example, a tarsila recounts the adventures of Datu Guimba who leads the first group of Maguindanao to Labangan. According to the account, he marries the local princess Bai-alibabai and adopts the title Datu sa Labangan. The next to arrive at Labangan is Datu Buyan Makasosa Kanapia, an adventurer, who marries a Maranao. Together, Datu Guimba and Kanapia rule Labangan. Other datu arrive in time, namely: Datu Maulona Taup Consi and Datu Canao Sultan Maputi (Alfanta 1975:4-5).