When marfer bengero composed pamulinawen folk song?

Marfer Bengero is not a widely recognized figure associated with the composition of the folk song "Pamulinawen." This traditional Ilocano song, which praises the patron saint of Laoag City, Saint William, is believed to have been passed down through generations, with its origins dating back to the Spanish colonial period in the Philippines. The exact date of its composition is unclear, as folk songs often evolve over time and may have multiple contributors.