Jan Frederik Helmers died in 1813.
Jan Frederik Helmers was born in 1767.
Jan Frederik Gronovius died in 1762.
Jan Frederik Gronovius was born in 1686.
Peter Helmers died on January 2, 1976, in Los Angeles, California, USA.
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 Liebmann died in 1856.
Frederik Schübeler died in 1892.
Frederik Motzfeldt died in 1848.
Frederik Vermehren died in 1910.
Frederik Hansen died in 1962.
Frederik Rung died in 1914.