Niels Peter Nielsen, b: 1851 -

^{1914 - 1918 World War I}
^{1922 USSR formed by Soviet states}
^{1939 - 1945 World War II}
^{1945 Atomic bomb detonated (Hiroshima)}
^{1950 Korean War begins}

^{1871 Franco - Prussian War}
^{1895 Marconi invents wireless telegraphy}
^{1899 Boer War begins}
^{1903 Wright brothers 1st plane flight}
^{1912 Titanic sinks on maiden voyage}

^{1815 Battle of Waterloo, Napoleon defeat}
^{1830 French Revolution}
^{1837 Queen Victoria assumes throne}
^{1854 Crimean War with Russia}
^{1869 Opening of Suez Canal}




^{Niels Peter Nielsen}^{b.1851 d.1896}



		^{Edvard Frederik Ditlev Rosenørn}^{b.1817 Ingvorstrup, Denmark d.1853 Aarhus, Denmark}

	^{Johan Christian Rosenørn}^{b.1839 Randers, Denmark d.1916}	^{Cecilie Wibroe}^{b.1819 Randers, Denmark d.1894 Glyngore}

^{Dagmar Alexandra Rosenørn}^{b.1868 Fredericia, Vejle, Denmark d.1922 Aarhus, Denmark}

	^{Anna Caroline Natalie Buch}^{b.1844 Randers, Denmark d.1915}