 Its secretary was Timothy Harrington who organised the Plan of Campaign in 1886.The Irish League was effectively controlled by the Parliamentary Party, which in turn was controlled by Parnell, who chaired a small group of MPs who vetted and imposed candidates on constituencies.In December 1890 both the INL and the IPP split on the issues of Parnell's long standing family relationship with Katharine O'Shea, the earlier separated wife of a fellow MP, Capt.