Map - Muiden (Gemeente Muiden)

Muiden is a city and former municipality in the Netherlands, in the province of North Holland. It lies at the mouth of the Vecht and is in an area called the Vechtstreek. Since 2016, Muiden has been part of the new municipality of Gooise Meren.

The first known reference to Muiden is from 953 when Otto I, Holy Roman Emperor, granted the settlement and its toll rights to Cathedral of Saint Martin, Utrecht. It was called Amuda, meaning "mouth of the (river) A". "A" was the old name for the Vecht river.

In 1122 Muiden was, together with Utrecht, granted some city rights by Emperor Henry V. After the lands around Muiden were given to Count Floris V, he began building Muider Castle at the mouth of the Vecht river. Muiden once again received city rights in 1296.

The first defensive works date from the first half of the 15th century. In 1590 the walls are replaced with earthen mounds with bastions after a design by Adriaen Anthonisz. Muiden was the northern end of the Dutch Water Line.

In 1673 the sea lock in the Vecht river was relocated from Fort Hinderdam to Muiden and in 1676 it was expanded with a sea wall along the Vecht mouth to prevent flooding.

Developments in warfare during the Franco-Prussian War of 1870 prompted another round of upgrades and the construction of forts part of the Stelling van Amsterdam, which includes the Muizenfort, the barracks on the Vestingplein, and the casemates in the ravelins. The layout of the fortification wall was revised.

Fort Pampus Island, part of the former municipality of Muiden, was built from 1887 to 1897. Together with the lighthouse island near Durgerdam and the artillery battery at the Diemer seawall, it was meant to protect the entrance of the IJ Bay and the harbour of Amsterdam.