He also served as Lord - Lieutenant of County Monaghan from 1871 to 1897 .
In 1886 Dartrey broke with William Ewart Gladstone over Irish Home Rule and moved to the Liberal Unionist benches in the House of Lords .
Dartrey also served as Lord - Lieutenant of County Monaghan from 1871 to 1897 .
In 1886 Dartrey broke with William Ewart Gladstone over Irish Home Rule and moved to the Liberal Unionist benches in the House of Lords .