Riddarholmsbron

Riddarholmsbron (Swedish: [ˈrɪ̂dːarhɔlmsˌbruːn], "The Knights Islet bridge") is a bridge in Gamla stan, the old town in central Stockholm, Sweden, leading from the square Riddarhustorget on Stadsholmen to the smaller neighbouring island Riddarholmen.

Once the name of islet had been changed, Munkbron instead referred to the quay which then faced Riddarholmen.

In 1630 the Councillor Åke Tott (1598–1640) was granted permission to build a drawbridge over to his estate on Riddarholmen from the north-western corner of the House of Knights, a construction that would survive him by only 15 years.

Due to the clear height demanded by the locomotives, the four spans of the new cast iron bridge built in 1867 had to be made both steeper and longer than those of its predecessors.

In 1958 the present 13.4 metre wide, closed frame, concrete bridge crossing Centralbron, one of the major motorways in Stockholm, over two intermediate supports was finally built.