Together with Hans D. F. Linstow, Christian Heinrich Grosch (1801-1865) was the most important architect in Norway in the years after the country won independence in 1814 - the two architects, who became bitter rivals, gave the new capital Christiania (Oslo) its shape and were behind many of its most important buildings.
More buildings by Grosch than by Linstow survive, but today one work by Grosch was lost when Hønefoss Church was completely destroyed in a fire. The church was built between 1859 and 1862 and could seat 350 persons.
NRK reports on the fire: http://nrk.no/nyheter/distrikt/ostafjells/buskerud/1.6964408
The photo is in the public domain and courtesy of Wikipedia.