The Old Church, founded in the 11th century, but in its present form dating from 1476, contains the monuments of two famous admirals of the 17th century, Martin van Tromp and Piet Hein, as well as the tomb of the naturalist Leeuwenhoek, born at Delft in 1632.
War was declared in May 1652 after a fight between Blake and Tromp off Dover, and was continued with signal victories and defeats on both sides till 1654.
The Dutch acknowledged the supremacyof the English flag in the British seas, which Tromp had before refused; they accepted the Navigation Act, and undertook privately to exclude the princes of Orange from the command of their forces.
Brielle is the birthplace of the famous admiral Martin van Tromp, and also of Admiral van Almonde, a distinguished commander of the early 18th century.
In May forty sail of their war-ships appeared off Dover under command of Martin Harpertzoon Tromp - then the best known of their admirals.