Saint Malachy (1094–1148) was an Irish archbishop and church reformer, the first formally canonised Irish saint. He is credited with the apocryphal "Prophecy of the Popes" – a list of 112 short Latin mottoes purporting to describe successive popes until the end of time.

Cheiro (Count Louis Hamon, 1866–1936) was an Irish palmist, astrologer and numerologist, often called the "father of modern palmistry." He read the palms of many celebrities of his era and authored bestselling manuals such as "Cheiro's Language of the Hand."