In use since at least 1612
Blazon: Gules a fess argent surmounted by a plowshare sable
The arms of the town are derived from those of the Babenbergs with the plowshare representing St. Cunigunde, who walked over red-hot plowshares to prove her innocence of adultery. Some older depictions of the arms show the plowshare as or.
Later Pope Alexander VI (1421-1503)
Blazon: Per pale or a bull passant gules on a base vert within a bordure of the field charged with eight flames of the last and barry of six or and gules*
Rodrigo used these arms at least since his election to the papacy; he may have taken that opportunity to add to his family’s traditional arms. I cannot find any record of the origin of the sinister arms, though several other later Borgias used them as well. They may be a reference to the arms of Aragon, where he was born.
*Also seen as sable
In use since at least 2013; most likely granted after 2003
Blazon: Per pale azure on a mount in base proper a path argent leading to a castle triple-towered or and of the second a cross of Calatrava gules
The castle in the arms probably refers to the Castillo de Salvatierra, a local fortress built by the Romans and later used by the Muslims during Reconquista. It is mostly destroyed today.
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).
[Sir William de Tankerville] recieved as great an advancement in the bearing of his coat, which for the taking of [Robert Bosne, Earl of Leicester and Count of Meulan] prisoner, did assume Gules an escutcheon Argent within an Orle of 8 Cinquefoils Argent.
– From Lacies Nobility by Sir John Ferne (1586), p72
Robert and his father bore gules a cinquefoil ermine, hence the orle of cinquefoils.
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.
From the Dering Roll (c. 1270-1300)
Blazon: Gules a fess ermine, in chief two molets of five points or