Blazon: Per fess I per pale or the letters Y and F crowned sable and argent a cross of Calatrava gules and II azure a bridge of three arches argent over water in base barry wavy of the last and the field
The Y and F stand for Isabella of Castile and Fernando of Aragon, whom the blazon claims were the “true founders” of the town. (In the fifteenth century, the letters Y and I were often used interchangeably.)
Blazon: Per pall reversed I or an oak leaf in pale vert, II argent in chief a cross of Calatrava gules, in base an eagle displayed sable, III azure over water in base barry argent and the field a bridge of three arches proper
The first written record of the town dates from 1214, using the name “Robredum de Migael Diaz.”
Blazon: Azure a covered bridge or, in chief five pistons 2 and 3 and in base a base wavy argent
The pistons presumably come from the Schenken von Limpurg arms, while the covered bridge seems to be a traditional symbol of the town (though no such bridge survives today).
Blazon: Gules a bridge and in chief a crown or
The town is located on the border with Hungary. Its Hungarian name, Királyhida, means “royal bridge”; hence the charges.
Blazon*: Vert over water in base proper on a bridge between two towers a heraldic panther rampant argent
*Technically, the town itself was never granted arms. This is a brand used for ironworks produced in the town by permission of Emperor Maximilian I.
Blazon: Argent a triple mount vert surmounted by a bridge of two yokes argent and a base wavy azure
The bridge (Brücke) in the arms was specifically chosen as a reference to the town’s name, making these canting arms.
Blazon: Vert per bendlet wavy sinister argent, in chief a bridge of two levels, the chief of four arches and the base of two, and in base a ruin or
The ruins in the sinister base are those of Klamm Castle, dating from about 1220. The castle was apparently founded by a pair of robber baron brothers who were later overthrown by Matthias Corvinus in 1487. The bridge belongs to the Semmering Railway, which was constructed between 1848 and 1854.