Naga Parochial School was founded by Bishop Pedro Santos after the Second World War, in 1947 at the Casa Parroquial.  This same 'casa' ,  in the late 1860's housed the first school of the Daughters of Charity which later became the Colegio de Santa Isabel.

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In the early part of the 20th century,  the Camarines Sur Academy was established at the Cathedral. The academy was the forerunner of the Ateneo.

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Msgr. Porfirio Ramin (front, center), the Vicar General and Parish Priest of the Cathedral was the first Director of the Naga Parochial School.