|Heraldry of the World |
Wappen der Welt
Civic heraldry of Germany
The arms were granted on November 18, 1957
The arms show the banner of the Counts of Montfort, Counts of Tübingen, whose possessions included the largest part of the district from the 13th century until 1780. The base of the shield symbolises the Bodensee lake.
Literature : Stadler, 1964-1971, 8 volumes.