The Admiralty of Rotterdam, also called the Admiralty of de Maze, was one of the five Dutch admiralties in the Dutch Republic. History The Admiralty of Rotterdam was founded in 1574 during the Dutch Revolt, when (after the Capture of Brielle) William I of Orange's supporters decided to pool their naval resources at Rotterdam. After a number of reorganisations seeking to foster cooperation between the admiralties, the structure of the five admiralties was determined and defined in a 1597 decision of the States-General of the Netherlands. Each admiralty had branches for equipping warships, protecting overseas trade and traffic on the sea and rivers, collecting taxes, and jurisdiction over loot and prize-setting. This situation remained in place until the admiralties were dissolved in 1795. The Admiralty of Rotterdam or the Admiralty of the Meuse was the oldest of the admiralties. The admiralty was based in the Prinsenhof (Rotterdam), the former St Agnes convent at . An artilleriehuis (arsenal) was built in the convent brewery, and an admiralty prison was built elsewhere in the complex. In 1644 the Prinsenhof was demolished to make way for the construction of Nieuwemarkt, with the admiralty moving to the northwest corner of Haringvliet. The artilleriehuis was, however, spared due to its noncentral position on the Prinsenhof site by the end of the Huibrug, but was demolished and rebuilt in 1759, probably using stone from the demolished late 16th-century frontage of the admiralty building. One of these stones shows the admiralty's arms, with the crossed anchors and an abbreviation of its motto Pugno Pro Patria ("I fight for the fatherland"). The admiralty's new 1644 building, the Admiraliteitshof (its name recalling that of the Prinsenhof), was an imposing classical building with a facade showing the coat of arms, and a square plan centered on a courtyard. It was demolished in 1884. (The remains of a gate with the coat of arms can be seen in the collection of the Rijksmuseum in Amsterdam.) From the end of the 16th century, the admiralty also owned the 's-Landswerf shipyard at the northeastern corner of the Nieuwe Haven. It was demolished and rebuilt on the same site in 1660, then extended in 1662 with a second arsenal accessed by a very wide entrance opposite the east gate. In the second half of the 17th century, the Nieuwe Haven was extended to the Buizengat harbor. Because of this extension, the 's-Landswerf shipyard was