The location of Fort Santiago was once the site of a palisaded fort, armed with bronze guns, of Rajah Matanda, a Muslim rajah of pre-Hispanic Manila who himself was a vassal to the Sultan of Brunei.
The fort was destroyed by maestre de campo (master-of-camp) Martin de Goiti who, upon arriving in 1570 from Cebu, fought several battles with the Muslim natives.
The Spaniards started building Fort Santiago (Fuerte de Santiago) after the establishment of the city of Manila under Spanish rule on June 24, 1571, and made Manila the capital of the newly colonized islands.

The first fort was a structure of palm logs and earth.
Most of it was destroyed when the city was invaded by Chinese pirates led by Limahong.
Martin de Goiti was killed during the siege.
After a fierce conflict, the Spaniards under the leadership of Juan de Salcedo, eventually drove the pirates out to Pangasinan province to the north, and eventually out of the country.


The construction of Fort Santiago with hard stone, together with the original fortified walls of Intramuros, commenced in 1590 and finished in 1593 during the reign of Gómez Pérez Dasmariñas.
 The stones used were volcanic tuff quarried from Guadalupe (now Guadalupe Viejo in Makati).
 The fort as Dasmariñas left it consisted of a castellated structure without towers, trapezoidal in trace, its straight gray front projecting into the river mouth.
Arches supported an open gun platform above, named the battery of Santa Barbara, the patron saint of all good artillerymen.
These arches formed casemates which afforded a lower tier of fire through embrasures.
Curtain walls of simplest character, without counter forts or interior buttresses, extended the flanks to a fourth front facing the city.

 In 1714, the ornate gate of Fort Santiago was erected together with some military barracks.
 The Luzon earthquakes of 1880, which destroyed much of the city of Manila, destroyed the front edifice of the fort changing its character.

During the leadership of Fernándo Valdés y Tamon in the 1730s, a large semicircular gun platform to the front called media naranja (half orange) and another of lesser dimensions to the river flank were added to the Bastion of Santa Barbara.
The casemates were then filled in and embrasures closed.
He also changed the curtain wall facing cityward to a bastioned front.
A lower parapet, bordering the interior moat, connects the two bastions.
The location of Fort Santiago was once the site of a palisaded fort, armed with bronze guns, of Rajah Matanda, a Muslim rajah of pre-Hispanic Manila who himself was a vassal to the Sultan of Brunei. The fort was destroyed by maestre de campo (master-of-camp) Martin de Goiti who, upon arriving in 1570 from Cebu, fought several battles with the Muslim natives. The Spaniards started building Fort Santiago (Fuerte de Santiago) after the establishment of the city of Manila under Spanish rule on June 24, 1571, and made Manila the capital of the newly colonized islands.
The first fort was a structure of palm logs and earth. Most of it was destroyed when the city was invaded by Chinese pirates led by Limahong. Martin de Goiti was killed during the siege. After a fierce conflict, the Spaniards under the leadership of Juan de Salcedo, eventually drove the pirates out to Pangasinan province to the north, and eventually out of the country.

The construction of Fort Santiago with hard stone, together with the original fortified walls of Intramuros, commenced in 1590 and finished in 1593 during the reign of Gómez Pérez Dasmariñas.  The stones used were volcanic tuff quarried from Guadalupe (now Guadalupe Viejo in Makati).  The fort as Dasmariñas left it consisted of a castellated structure without towers, trapezoidal in trace, its straight gray front projecting into the river mouth. Arches supported an open gun platform above, named the battery of Santa Barbara, the patron saint of all good artillerymen. These arches formed casemates which afforded a lower tier of fire through embrasures. Curtain walls of simplest character, without counter forts or interior buttresses, extended the flanks to a fourth front facing the city.
 In 1714, the ornate gate of Fort Santiago was erected together with some military barracks.  The Luzon earthquakes of 1880, which destroyed much of the city of Manila, destroyed the front edifice of the fort changing its character.
During the leadership of Fernándo Valdés y Tamon in the 1730s, a large semicircular gun platform to the front called media naranja (half orange) and another of lesser dimensions to the river flank were added to the Bastion of Santa Barbara. The casemates were then filled in and embrasures closed. He also changed the curtain wall facing cityward to a bastioned front. A lower parapet, bordering the interior moat, connects the two bastions.
Fort Santiago