Having attended the Roscommon Races a few weeks ago, she decided “to keep going” and make more outfits for racegoers.

Costelloe was a designer for the likes of Princess Diana, Wedgwood and British Airways. For the last 20 years, he partnered with Dunnes Stores to produce a range of menswear, womenswear, homeware and more.

"Triona lived as though life was a ballroom, and she always led the dance."

She was widely regarded in the fashion world with her designs being worn by celebrities