Petronella Louise Rosenørn, b: 1861 -

^{1854 Crimean War with Russia}
^{1869 Opening of Suez Canal}
^{1871 Franco - Prussian War}
^{1895 Marconi invents wireless telegraphy}
^{1899 Boer War begins}

^{1804 Napoleon becomes French Emperor}
^{1805 Battle of Trafalgar, Nelson killed}
^{1815 Battle of Waterloo, Napoleon defeat}
^{1830 French Revolution}
^{1837 Queen Victoria assumes throne}

^{1770 Cook discovers New South Wales}
^{1776 America declares independence}
^{1789 Geo. Washington 1st USA president}
^{1789 French Revolution begins}
^{1798 Irish revolt against English rule}




^{Frederik Joachim August Heltzen}^{b.1841 d.1895}



		^{Peter Otto Rosenørn}^{b.1778 Katholm, Denmark d.1847 Garnisons, Denmark}

	^{Poul Christian Stemann Rosenørn}^{b.1824 Soro, Denmark d.1902}	^{Catharina Elisabeth Stemann}^{b.1789 d.1870}

^{Petronella Louise Rosenørn}^{b.1861 d.1911}

	^{Caroline Gustave Scmidt}^{b.1832 d.1911}