This was decided by provincial officials of Batangas and Tayabas, with the agreement from the bishop of Nueva Caceres and the archbishop of Manila.

[5] On April 11, 1835, the Governor-General issued a decree establishing the boundary of the town, then known as Nuestra Senora de los Dolores.

The town's seat of government was then Barrio de Maranli (present-day Poblacion), which remains the case until transferring to Bulakin II in September 1966.

[5] Beginning on May 17, 1902, Dolores was temporarily consolidated with the municipality of Tiaong (Tiaon) by virtue of Act No.

It has 3,858.29 hectares (9,534.0 acres) of land area devoted to local crops such as coconut, rambutan, citrus, and other fruit trees, etc.