Patrick Lenihan
His son Brian Lenihan had been elected in the neighbouring constituency of Roscommon in 1961 , at the previous election . It was the first , and to date only , occasion of a child preceding his parent into the Dáil . Patrick Lenihan was re-elected to the Dáil at the 1969 general election and died suddenly in 1970 . His seat was taken at the subsequent by-election by Fine Gael's Patrick Cooney who subsequently went on to serve as a Minister . 
<triplet> Patrick Lenihan <subj> Brian Lenihan <obj> child