MICHAEL COLLINS was accidentally labelled a "langer" in 100,000 Cork Rebel Week promotional brochures after a "doodle" by a graphic artist was not spotted.
The organisers of the event, part of Cork's 'The Gathering' celebration, publicly apologised to the Collins family for any upset the error caused.
The word "langer" is a Cork colloquialism and can have both positive and negative meanings.
It is usually applied in a humorous context and, several years ago, inspired a Cork pop hit, 'The Langer Song'.
Padraic O'Kane of Corporate.ie, an agency for Cork Rebel Week, said it took full responsibility for the mistake.
"We want to take this opportunity to apologise unreservedly for any disrespect caused to the memory of General Collins and his family," he said.
"It was a simple doodle back in the original graphic design," he said. "It was taken through in haste and it was not spotted because the size of the text is particularly small. It was disrespectful. It was wrong."
The error was spotted when the brochures were presented to Cork City Council members at a public briefing session.
Cllr Emmet O'Halloran (FG), a former Deputy Lord Mayor of Cork, queried how such an error could happen in a high-profile tourism promotion.
"I don't think the general public would be too happy if James Connolly or Padraig Pearse were referred to in this manner," he said.