How Filipinos got Spanish surnames
On 21 November 1849, Governor-General Narciso Clavería decreed that Filipino families adopt fixed surnames. The decree came with the Catálogo alfabético de apellidos, a list of about 61,000 names. Names were assigned so that, as far as possible, each surname belonged to one family per town. Families who had used a surname for four generations could keep it.12 FamilySearch notes that Aquino is in the Catálogo and is often devotional, honoring Saint Thomas Aquinas. Today it is most common in Manila, Pangasinan, Bulacan, Rizal and Isabela.3
Kapampangan roots
The historian Robby Tantingco traces the Tarlac Aquinos to southern Pampanga, to an ancestor from Macabebe. In the early 1800s the family moved north to San Bartolome, by the Parua River. A flood in 1861 split the family between Magalang and Concepción.5 Hilario Aquino, married to Isabela Lacsamana, was gobernadorcillo of Magalang in 1854. His son Braulio was gobernadorcillo of Concepción from 1885 to 1887.6 Braulio married Petrona Aguilar, a great-granddaughter of Ángel Pantaleón de Miranda, founder of Angeles.5
Because Hilario already carried the surname by 1854, only five years after the decree, the family may have used Aquino before 1849. The sources do not settle this.
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