Inside The Irish Giant: History, Medicine, edicine, and the Performing Arts Saturday 28 May Gigantism, Genetics and History - Panelist Brendan Holland (Pituitary Patient) 58-year-old old Irish businessman Brendan Holland was involved with TV documentary-maker maker Ronan McCloskey on the BBC project, ‘The Irish Giant’. Holland,, like other members of his family, was affected by a pituitary tumor as a teenager. It was removed but left its mark: Holland is 2.06m [6ft [ 9in] tall (still still a foot shorter than Byrne, whose real hei height was 2.34m [7ft 8in]). Holland comes from Tyrone and is fascinated by the number number of actual giants in the area. Tested by Professor Márta Korbonits (also filmed for the BBC Irish Giant production), Holland was found to have the AIP mutation, the same mutation as Charles Byrne.