Donal Conor David Dermot Donat Cruise O'Brien, often nicknamed "The Cruiser", was an Irish diplomat, politician, writer, historian and academic, who served as Minister for Posts and Telegraphs from 1973 to 1977, a Senator for Dublin University from 1977 to 1979, a Teachta Dála for the Dublin North-East constituency from 1969 to 1977, and a Member of the European Parliament from January 1973 to March 1973. Wikipedia