hidden Felten, Yuri Matveyevich (George Friedrich) (1730 - 1801), an architect Velten, Yuri Matveyevich (George Friedrich) (1730 - 1801), an architect, teacher. Felten learned at the St. Petersburg Academy of Sciences???? during 1740-1745, in 1750 he graduated from the Tyubingen University. He was the chief architect of the... more