The community's arms might be described thus: Or a ram's attire gules.

The ram's horn can have been taken from neither the arms borne by the Barons of Thüngen nor those borne by the Counts of Rieneck, even though both families are tightly bound with Burgsinn's history.
While the half of Castle Burgsinn that the Counts of Rieneck held in fief passed, when the Counts’ Rothenfels line died out, back to Würzburg in 1333, with the Barons of Thüngen buying the whole castle in 1405 from Würzburg, it was the Voit von Rieneck family, long the Vögte at Rieneck, who were until the 15th century holders of part of the tithes and of the court at Mittelsinn.

In 1630, when the Electorate of Mainz moved to strip the family Thüngen of their fief, the court at Burgsinn was held by the von Rieneck family's steward.
The Counts of Rieneck had already died out in the early 16th century.
After the Thüngens were reinstated in Burgsinn in 1697, besides various other agreements made by the community, the community received an explicit assurance that it could use “its old village seal”.
What kind of seal this was and from what time it came is not said, but since the Voit von Rieneck family bore a ram in its coat of arms, it can be assumed with a likelihood bordering on certainty that Burgsinn's coat of arms was a reduced version of the Voit von Rieneck family's.
The community's arms might be described thus: Or a ram's attire gules.
The ram's horn can have been taken from neither the arms borne by the Barons of Thüngen nor those borne by the Counts of Rieneck, even though both families are tightly bound with Burgsinn's history. While the half of Castle Burgsinn that the Counts of Rieneck held in fief passed, when the Counts’ Rothenfels line died out, back to Würzburg in 1333, with the Barons of Thüngen buying the whole castle in 1405 from Würzburg, it was the Voit von Rieneck family, long the Vögte at Rieneck, who were until the 15th century holders of part of the tithes and of the court at Mittelsinn.
In 1630, when the Electorate of Mainz moved to strip the family Thüngen of their fief, the court at Burgsinn was held by the von Rieneck family's steward. The Counts of Rieneck had already died out in the early 16th century. After the Thüngens were reinstated in Burgsinn in 1697, besides various other agreements made by the community, the community received an explicit assurance that it could use “its old village seal”. What kind of seal this was and from what time it came is not said, but since the Voit von Rieneck family bore a ram in its coat of arms, it can be assumed with a likelihood bordering on certainty that Burgsinn's coat of arms was a reduced version of the Voit von Rieneck family's.
Burgsinn