Simplify the following text for a Grade 10 native English-speaking person.
Original: Charles Stewart Parnell ( 27 June 1846 â `` 6 October 1891 ) was an Irish Anglican landowner , nationalist political leader , land reform agitator , and the founder and leader of the Irish Parliamentary Party .
Simplified: Charles Stewart Parnell ( 27 June 1846 -- 6 October 1891 ) was an Irish Anglican politician in the Parliament of the United Kingdom , which was at his time included Ireland . He started the Irish Parliamentary Party .