(St.), in the cemetery of Downpatrick cathedral. Visitors are shown the spot where the “saint” was buried, but, on asking why there is no memorial, is informed that both Protestants and Catholics agreed to erect a suitable one, but could not agree upon the inscription. Whatever the Protestants erected in the day the Catholics pulled down at night, and vice versâ. Tired of this toil of Penelope, the idea was abandoned, and the grave was left unmarked by monumental stone.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894