 Swedish Bremen-Verden tried to remediatise the Free Imperial City of Bremen (i.e., to make it switch its allegiance to Sweden).With this in view, Swedish Bremen-Verden twice waged war on Bremen.In 1381 the city of Bremen had imposed de facto rule in an area around Bederkesa and west of it as far as the lower branch of the Weser near Bremerlehe (a part of present-day Bremerhaven).