Blazon: Per pale gules two cauldrons in pale chequy or and sable, each containing twelve serpents, eight facing the exterior and four facing the interior proper and chequy of twelve argent a lion rampant purpre armed and crowned or, langued gules (León) and gules a castle triple-towered or windowed azure (Castile)
In use since at least 1989
Blazon: Azure two pike poles in saltire or between three molets of eight points in dexter, sinister, and base argent
Our Viscount may not wear any coronet (for he is called noble, but he may not be said princely).
– From The Blazon of Gentrie by Sir John Ferne (1586), p133
Blazon: Per bend sinister argent and sable a goat springing counterchanged, bearing in its mouth a bunch of grapes vert, slipped and leaved proper
I am unable to find a definite origin for the goat charge, but the grapes may be a reference to the abundant vineyards of the region. The Abensberg-Traun family, who purchased the town in 1635, bear the arms per pale argent and sable, which may have influenced the municipal arms. It does not seem that these arms were used before the 1974 grant.
From the Dering Roll (c. 1270-1300)
Blazon: Azure three molets of five points or and a label of as many points gules
In use since 1596
Blazon: Or a fess gules, in chief an antler fesswise sable
In use since at least 1991
Blazon: Per fess or a fess gules and gules a comb palewise or