Negombo Fort was a small but important fort in Negombo, approx. 30 km north of Colombo, that was built by the Portuguese to defend Colombo.
In its time the fort at Negombo was probably the next in strategic importance after Colombo, Jaffna and Galle. The original Portuguese fort was a weak structure, which, according to the account of João Ribeyro; "Negombo was only a square enclosed by walls, with two redoubts and five guns. A Captain and a few men, with a Chaplain were stationed there" It was captured by Dutch forces commanded by Philip Lucasz, in February 1640. The Portuguese made several attempts to retake it before they were successful in December 1643. They then strengthened the fortifications and managed to defend the fort until it was recaptured by the Dutch under the command of François Caron, in January 1644.
Wikipedia https://en.wikipedia.org/wiki/Negombo_fort
Address Sri Lanka
Coordinates 7°12'31.194" N 79°49'52.689" E