Lidköping (Sweden)

The flag of the commune of Lidköping is rather widely used there. It is vertically 5:4, the lower third is blue, the 2 upper thirds are white with logo.

From the city website: "Nyköping has 24.000 inhabitants and is in Västra Götaland county."

The logo has nothing to do with the municipal arms.

On Ralf Hartemink's site, you can read:

Lidköping became a city in 1446. The oldest seal probably dates from the same time, but is not known prior to 1505. It shows a bishop on a throne. It is, however, not known who the bishop symbolises. It may be the local bishop at the time, or the patron saint of the church, St. Nicholas. Later seals also simply show the letter L, with or without the bishop. In 1945 it was decided not to add the L in the new arms. Instead it was decided that the bishop was shown as St. Nicholas, so in the base a book and three coins were added. The coins are a symbol for one of St. Nicholas holy miracles, in which he saved the life of three children using golden coins.

The logo with its waves has I suppose links with Vänern lake.
Olivier Touzeau, 4 September 2005