Jan Frederik Helmers was born in 1767.
Jan Frederik Helmers died in 1813.
Jan Frederik Gronovius was born in 1686.
Jan Frederik Gronovius died in 1762.
Knut Jøran Helmers was born on 1957-02-07.
Peter Helmers was born on February 16, 1901, in Vienna, Austria-Hungary (now Austria).
Jan Frederik Heijbroek has written: 'Whistler and Holland' -- subject(s): Exhibitions, In art, Influence
Frederik van Pallandt's birth name is Frederik Jan Floris Baron van Pallandt.
Frederik Abrahams was born in 1990.
Frederik Herendeen was born in 1893.
Frederik Zimmer was born in 1944.
Frederik Liebmann was born in 1813.
Frederik Collett was born in 1839.