Question: Who built the hexagonal settlement that was disestablished in 1789 ?

text: Dutch Malabar
Forts and trading posts

Dutch Malabar, also known by the name of its main settlement Cochin, was the title of a commandment of the Dutch East India Company on the Malabar Coast between 1661 and 1795, and is part of what is today collectively referred to as Dutch India. Dutch presence in the region started with the capture of Portuguese Quilon, and ended with the occupation of Malabar by the British in 1795. They possessed military outposts in 11 locations: Alleppey, Ayacotta, Chendamangalam, Pappinivattom, Ponnani, Pallipuram, Cranganore (from 15 January 1662), Chetwai, Cannanore (from 15 February 1663), Cochin (7 January 1663 - 1795), and Quilon (29 December 1658 - 14 April 1659 and from 24 December 1661). The Kingdom of Cochin was an ally of the Dutch East India Company. The Dutch enlarged the Royal Palace built by the Portuguese at Mattancheri for the King of Cochin, which from then on became known as the Dutch Palace. In 1744, an impressive palace, later called Bolgatty Palace, was erected on Bolghatty Island for the Dutch Governors. The Dutch contributed a monumental work called Hortus Indicus Malabaricus on the medicinal properties of Malabar plants. In Cochin, the Dutch established an orphanage for poor European children and a leper asylum on Vypin.
Settlement Type Established Disestablished Comments
Fort Cochin Fort and factory 1663 1795 Established by the Portuguese as their first settlement in India . Captured by the Dutch in 1663 , who made it the capital of Dutch Malabar ( the residence of the Commander ) . During the Dutch occupation of Cochin they made several changes in the city . The Dutch reduced the area of the old Portuguese town , reduced the fort and destroyed most of the public buildings built by the Portuguese . They developed the harbour , the piers , many merchants houses and warehouses in Cochin
Fort Cranganore Fort 1662 1770 Cranganore was a little city with a small fort , but the place was of major strategic importance ; it was the key to Cochin . Fell under the command of Fort Cochin and meant to protect the latter . In 1662 , the formerly Portuguese fort was first given back to the Zamorin of Calicut as a reward for his alliance with the Dutch , but in 1666 the Dutch started to renovate the dilapidated fort for their own purposes
Fort Pallipuram Fort 1661 1789 Fell under the command of Fort Cochin and meant to protect the latter . Sold to the Kingdom of Travancore in 1789
Purakkad Factory Factory 1662 ? Fell under the command of Fort Cochin
Fort Quilon Fort and factory 1661 1795 Quilon was a fortified city . The first Portuguese fort to be captured by the Dutch in December 1661 . Capital of Dutch Malabar until the capture of Cochin in 1663
Kayamkulam Factory Factory 1661 ? Fell under the command of Fort Quilon
Fort Cannanore Fort and factory 1663 1790 Cannanore was a city with a good harbour and a strong stone fort . Captured on 15 February 1663 from the Portuguese
Vengurla Factory Factory 1637 1693 Established before the establishment of the Malabar commandment to spy on the nearby Portuguese settlement of Goa . Fell directly under the command of Batavia until 1673 , and then under command of Suratte . From 1676 onwards , the command was with Dutch Malabar
Barselor Factory Factory 1667 1682 Established by treaty with the local ruler . The unreinforced factory traded in rice and pepper , and was closed in 1682 after problems with local merchants