Johann Felsko, (1813—1902), an architect, urban planner and the chief architect of Riga for 35 years
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Karl Felsko, (1844—1918), one of the most productive architects during the building boom in Riga of the late 19th century and early 20th century
From 1875 to 1887, Felsko was an assistant to the professors Johannes Koch and Gustav Hilbig at Riga Polytechical Institute.