The Vatican earlier posed no objection to the beatification process of Father Palliola, who established Christian settlements in the western part of Mindanao among the Subanon tribe.
A Catholic priest who was taken hostage by militants linked to the Islamic State group says he's being held alongside 200 other captives, including children.
Cardinal-designate Louis-Marie Ling Mangkhanekhoun, who will become the first cardinal from Laos, is an ethnic Khmu, a hill tribe from northern Laos and southern China.
Gunmen claiming to have links with the Islamic State group threatened to kill hostages, including a Catholic priest, who were taken from the southern Philippine city of Marawi on May 23.