Paco
According to folk etymology , the nickname has its origins in Saint Francis of Assisi , who was the father of the Franciscan order; his name was written in Latin by the order as "Pater Communitatis" ( father of the community ) ; hence "Paco" was supposedly obtained by taking the first syllable of each word . 
<triplet> Saint Francis of Assisi <subj> Franciscan <obj> religious order <triplet> Franciscan <subj> Saint Francis of Assisi <obj> named after