Brigitta Lorck, b: 1727

^{1762 Catherine II becomes Czarina/Russia}
^{1770 Cook discovers New South Wales}
^{1776 America declares independence}
^{1789 Geo. Washington 1st USA president}
^{1789 French Revolution begins}

^{1696 Peter the Great becomes Czar}
^{1700 Britain's american colonies prosper}
^{1707 Union Act unites England/Scotland}
^{1712 Religious warfare in Switzerland}
^{1740 War of Austrian Succession begins}

^{1640 Portugal gains independence/Spain}
^{1642 Civil war England/Scotland/Ireland}
^{1660 Restoration of monarchy, Britain}
^{1665 Great plague of London}
^{1666 Great Fire of London}



		^{Johann Henrich Prehn}^{b. d.}

	^Peter Prehn^{b.1718 Flensburg d.1777}

		^{Hanna Petersen}^{b. d.}

^{Johann Hinrich Prehn}^{b.1748 Flensburg d.}			^{Lorenz Petersen Lorck}^{b.1640 Neukirchen, Angel d.1700}

		^{Thomas Lorenzen Lorck}^{b.1676 Flensburg d.1733 Flensburg}	^{Maria Schwensen}^{b.1640 Flensburg d.1708 Flensburg}

	^{Brigitta Lorck}^{b.1727 Flensburg d.1748 Flensburg}		^{Peter Bischoff}^{b. d.}

		^{Brigitta Bischoff}^{b.1693 Flensburg d.1754 Flensburg}	^{Anna Paulsen}^{b. d.}