II. (Great) Frederick, the Hohenzollern ruler, was King of Prussia and Elector of Brandenburg. II. Frigyes was born on January 24, 1712 in Berlin. He was the son of King Frederick William I of Prussia and Princess Dorottya Zsófia of Hanover. He grew up with his siblings, and 14 siblings were born from the family's marriage, 10 of whom reached adulthood. II. Frigyes came to the throne in 1740 and immediately started fighting for Silesia. During decades of wars, nearly 300,000 of his subjects fell victim. During the four aggressive wars of his reckless life, he forged Prussia into a great power. During his reign, the Prussian state became one of the great powers, and at the time of his death he had an army of 193,000 men, which was the fourth largest army in Europe. II. Frederick was an excellent strategist and ruler, and fought most of his battles against superior forces. In the War of the Austrian Succession and the Seven Years' War, he launched conquering campaigns against Queen Mária Theresia of Hungary and Bohemia, the ruling Archduchess of Austria, with the aim of seizing and then keeping Silesia, the richest province of the Habsburg Empire. II. Frigyes died on August 17, 1786, near Potsdam, in the Sanssouci palace. The people referred to him as "the old Fritz", and his death caused grief and pain in Prussia. II. Frigyes married Princess Elisabeth Kristina Braunschweig-Wolfenbüttel-Bevern in 1733. Although the marriage was not happy, they had two children: Frigyes Vilmos and Luise Ulrike. Frigyes was a patron of art. He held collections in the Sanssouci Palace and also supported the Berlin Opera House. He himself wrote music and poems, and was a ruler of the Age of Enlightenment. He was a friend of Voltaire and also supported the Berlin Academy. II. Frigyes was famous for his sharp wit, humor and sarcasm. He was passionately interested in science and culture, he was an extremely complex and interesting personality who exerted a significant influence not only in the political, but also in the cultural and philosophical fields.

II. During the reign of King Frederick of Prussia (the Great), several types of coins were put into circulation. Disc silver thaler (Taler): This thaler was one of the most well-known coins issued by King II. Frederick was defeated. A portrait of the king can often be seen on the reverse side of the disc silver thaler. Gold Frederik: The gold Frederik was a gold coin issued by King II. Frederick was defeated. Its name refers to the king, and the thalers are made of gold. Copper coins: II. During Frederick's time, copper coins were also circulated, for example copper pfennings and copper groschens. The coins serve as historical documents. II. Frederick's coins show the economic and political state of Prussia at the time, as well as the period of the king's reign, and were often made with artistic elaboration. II. Frederick's coins are unusual, and only a limited number have survived due to the minting technique of the time. Their rarity and lack of availability increase interest in them.