Sonia Kolasinska, 39, told The Irish Times that she was asked by security staff to leave Madigan’s on O’Connell Street after attempting to join friends after attending a political meeting nearby.

She said her friends intervened and she “heard the bouncer talking to them and I just overheard ‘trans’ and ‘this trans person’”.

Ms Kolasinska was eventually allowed to stay, but the group left after one drink.

A number of solicitors approached by Ms Kolasinska after the incident declined to represent her, but was referred to Gary Daly & Co Solicitors by a friend.

She said: “Gary wrote to the owners of Madigan’s, Alabaster Associates. I signed the settlement in January and they published an apology in Gay Community News this month.”

The apology states: “On behalf of Alabaster Associates Limited and its directors, we wish to sincerely and unreservedly apologise to Sonia Kolasinska, a transgender woman, who was subjected to discrimination and humiliation by a third-party security contractor at our venue on the 25th August. The actions of this contractor do not reflect the values of our company and our employees.”