The history of conflict between Philippines government and separatist group in Southern Phillipines area has formed many radical Islamic groups such as, MILF, Abu Sayyaf, and Maute group. The emergence of these groups was caused by the schism in the older militant groups such as MNLF and MILF. However, the disunity of the older militant groups and the emergence of the so called “splinter groups” finally created conflicts among them. On the other hand, those groups bear resemblance in their family origins. This article highlighted the family networking inside the radical Islamic groups especially the Maute group. This group can grow rapidly because of the family bond between their founders and members with the Moro Islamic Liberation Front (MILF). The family bond became their protector and also vital point for the rise of radicalism in the Maute group.