Question: The death of which sitting member of the party formed in 1874 by Isaac Butt lead to the Dublin St Stephen's Green by-election, 1888?
Sentence (from "Dublin St Stephen's Green by-election, 1888"): The Dublin St Stephen's Green by-election, 1888 was a parliamentary by-election held for the United Kingdom House of Commons constituency of Dublin St Stephen's Green on 12 May 1888.
Relevant evidence: Yes