Together with their mother the two sons continued the father‘s business as a chasing-, repairing- and engraving-establishment. Theodor Heiden spent time in Vienna too. There he met Anton Seder, an artisan, painter and architect. There he was also engaged in the chasing-factory of Stefan Schwartz who became director of the chasing-school at the School of Applied Arts of Vienna in 1876. The spirit of the age was favorable to Theodor Heiden junior : King Ludwig II‘s loved and supported that style of the goldsmith‘s artisanry. In 1880 Theodor Heiden junior settled down in Munich as a silversmith. In 1887 he gained the civil liberty. We guess that his factory and store were to be found at the Müllerstraße 48. An obtained business card calls it a “studio for handcrafts in gold, silver and bronze, for enchased dinner-service, refurbishment and reproduction of antiquities, church-equipment“. They say that Prince Leopold of Bavaria was his first client. Heiden‘s specialties were already various historical goldsmith works. His most important designs derived from Adolf Seder who had gotten married to Heiden‘s sister Antoinette. Then Theodor Heiden junior opened a store at the Maximiliansplatz 2. 1898 he found the appropriate place for the factories at the Karlstraße 11 and the store at the Odeonsplatz 18. The Heiden company stayed there for the following 28 years. In 1885 Theodor Heiden already got the gold medal for a centerpiece, for pretentious pieces and several pieces of jewelry. At the “National Exposition of Germany“ which took place at the Isarkai in 1888 and in witch Heiden took part in its organization he presented a multitude of works that were very well received. A work, which had been ordered by Prince Arnulf of Bavaria earned Heiden the Prince‘s title of Court Goldsmith. In a certain way this title was the predecessor of the “Royal Bavarian Title of Court-Goldsmith“ which Heiden obtained in February of 1897. At this moment Heiden employed 20 members of staff. Heiden‘s annual sales came to 140000 marks. Heiden delivers to all the Royal Princes and Princesses of the Royal House and to HM The German Emperor. On the occasion of the “General German Exposition of Sports“ in Munich 1899 Theodor Heiden was awarded with the “King-Ludwig‘s-Medal of Industry“. In the nineties Theodor Heiden was involved together with other goldsmiths in honorary and anniversary gifts for several times. Moreover he continued to create semiofficial and official medals, plaques and chains of honor in many different ways, among them chains of office for mayors and university rectors. A couple of orders came directly from the German Emperor. The testimonial of the Bavarian Association of Applied Arts for Prince Regent Luitpold‘s 70. birthday, a symbolic female figurine standing on a generously adorned platform, was shown at the Parisian World Exposition in 1900. Heiden‘s grail was shown in Paris, too; it is considered as the masterpiece of Munich‘s goldsmith. Furthermore Heiden presented his work at World Expositions in Chicago and Brüssel and at Munich‘s Exposition of Applied Arts. The First World War brought the luxurious blooming period to an end. In 1918 a great mark of confidence was bestowed upon him by being commissioned to remodel the precious Royal Treasure. In 1926 the Association of Applied Sciences named him honorary member. Moreover he was honorary member of the Imperial Federation of Jewelers, Gold- and Silversmiths. In April 1928 he moved his store to the hotel Bayerischer Hof. A few months after the opening of the new store Theodor Heiden sen. died of a severe illness at the age of 75 accompanied by a great public condolence.