Blazon: Argent on a pale vert between two flanks gules, the dexter charged with five trefoils in pale and the sinister with a chain in pale, a triple mount in base and a stone hut of the field
Donnersbachwald technically no longer exists, as it was incorporated into the municipality of Irdning-Donnersbachtal in 2015. I’d assume that the mount refers to the local geography, which is extremely common for municipal arms. The vert and argent tinctures may be a reference to the Styrian arms, but that’s only speculation. Unfortunately, I’ve got nothing on the stone hut (or Kuppelbau, as the German blazon has it). My guess is that it’s a distinctive archeological construction in the region, which is also a pretty common motif for cities and towns, but I can’t find any mention of something like that. And if you’re wondering why I’ve called the charges on the sides “flanks,” see here. TL;DR it’s a charge specific to German heraldry, and they’re not the same things as flaunches.
Blazon: Azure a chief gules, the partition line surmounted by five thunderbolts or
The arms are intended to be canting, with the azure field representing “bach,” or water, and the thunderbolts representing “donner,” or lightning. (While thunderbolts are usually drawn as zigzag lines terminating in arrowheads, they are also sometimes rendered as bundles of lightning, as here. I believe these are intended to be more similar to the linked depiction.)
Blazon: Per fess argent a stag’s attires gules and vert a hunting horn of the first
The nearby forest, the Kaiserwald, was frequently used for hunting since the 13th century, which is reflected in the charges here.
Blazon: Azure three fleurs-de-lis in pall points to the exterior argent
The earliest records of Dobersberg occur around 1230 in the tithing records of the local monastery of St. George.
Blazon: Gules on a fess wavy argent a swan close proper
The swan is intended to symbolize purity and the worship of the Virgin Mary.
Blazon: Azure a church double-towered surmounted by a city wall or
The church in the arms is St. Martin’s, a local landmark that was frequently used as a town seal before the arms were officially granted. The church served a dual purpose in times of war, as it was also built to withstand attacks.
In use since at least 1965
Blazon: Gules four palets argent and a chief of the last chequy of the field, overall issuant from a mount in base a pine tree proper surmounted by a baton in bend sinister, interwoven with the palets or
The town has been in existence since 1496, with official incorporation coming in 1783. The region’s lush pine forests may be the source for the tree in the arms.