Violet Grace Cosby, b: -

^{1903 Wright brothers 1st plane flight}
^{1912 Titanic sinks on maiden voyage}
^{1914 - 1918 World War I}
^{1922 USSR formed by Soviet states}
^{1939 - 1945 World War II}

^{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}


			^{Frederick Mason Trench}^{b. Castle Oliver, Yks. d.1880}

		^{Hon-Frederic Sydney C. Trench}^{b. d.}	^{Harriet Georgiana Cosby}^{b.1811 d.1845 Woodlaw, County Galway}

^{Lt-Hon-Frederic Sydney Trench}^{b.1894 d.1916}	^{Frederic Oliver Trench}^{b.1868 3rd.Baron Ashtown d.1946}		^{William Thomas Le Poer Trench}^{b.1803 3rd. Earl of Clancarty d.1872}

^{Hon-Grace Mary Trench}^{b.1896 d.1975}		^{Lady-Anne Le Poer Trench}^{b. d.1924}	^{Lady Sarah Juliana Butler}^{b. d.}

^{Robert Power Trench}^{b.1897 4th. Baron Ashtown d.1966}

^{Hon-Arther Cosby Trench}^{b.1899 d.1918}		^{Col-Robert Ashworth G. Cosby}^{b. d.}

^{Dudley Oliver Trench}^{b.1901 5th.Baron Ashtown d.1979}	^{Violet Grace Cosby}^{b. d.}

		^{Alice Sophia E. Pocock}^{b. d.}