Adam Friedrich Graf von Seinsheim (1708–1779) was head of the bishopric of Würzburg and Bamberg from 1755 until his death. Adam Friedrich von Seinsheim was born on February 16, 1708 in Regensburg. His father was Maximilian Franz Graf von Seinsheim and his mother was Anna Philippina Gräfin von Schönborn. His mother was the sister of Franz Georg von Schönborn, Archbishop of Trier, Friedrich Karl von Schönborn, Duke-Bishop of Bamberg and Würzburg, and Damian Hugo Philipp von Schönborn, Duke-Bishop of Speyer. Adam Friedrich studied theology at the University of Salzburg and then studied law at the University of Würzburg and Leiden University. He was ordained a priest in 1753. In 1755, the Würzburg Cathedral Chapter unanimously elected him Duke-Bishop of Würzburg, which Benedict XIV. also confirmed. In 1757, at the request of the Holy Roman Emperor Francis I, he was also elected Duke-Bishop of Bamberg, thus establishing the personal union of the Duke-Bishoprics of Würzburg and Bamberg. Adam Friedrich supported the imperial side during the Seven Years' War. The Prussian army attacked both bishoprics during the war. Adam Friedrich died of pneumonia on February 18, 1779 in Würzburg, where he was buried. Through his memorable life and office, Adam Friedrich von Seinsheim left a worthy memory in the history of the German prince-bishoprics.

Prince-Bishop Adam Friedrich Graf (1708-1779) was the head of the Bishoprics of Würzburg and Bamberg from 1755 until his death. During its minting, it issued several coins, the most significant of which were the following: The convention thaler, minted in 1764, on which the bishop's portrait, coat of arms and the castle of Würzburg can be seen. This coin had a value of 1/9 convention thaler in the imperial monetary system and was made of 28.06 g of silver. The doppia, minted in 1766, showing the portrait of the bishop, his coat of arms and the keys of St. Peter. This coin had a value of 2 doppia in the Italian monetary system and was made of 6.77 g of gold. The kreuzer, minted in 1770, showing the coat of arms of the bishop and the castle of Würzburg. This coin had a value of 1/60 of a convention thaler in the imperial monetary system and was made of 1.86 g of copper. The bishop's coinage was one of the most developed among the German states at the end of the 18th century and reflected the economic development of the bishopric. His coins are now rare and highly collectible.