[1] Willemstad is a small historical town with well preserved fortifications.

The current name was first used in 1639 as Willemstat, and refers to William the Silent who fortified the settlement in 1583.

In 1587, the fortifications were completed, and Willemstad received a heptagon (seven sided) shape with seven bastions.

[4] The Dutch Reformed church was built between 1597 and 1607 and has an octagon shape with a dome with ridge turret on top.

[5] Willemstad was a separate municipality until 1997, when it became part of Zevenbergen, which changed its name to Moerdijk in 1998.