She was born in Paisley and her formative years were spent at Ralston Primary School and Paisley Grammar, before moving on to Glasgow University to complete a degree in accountancy.

As a consequence of winning the accounting prize at Glasgow, she was offered a place with the then Deloitte Haskins & Sells in 1989, where she excelled equally in training as a chartered accountant.

DH&S were to merge with Coopers & Lybrand with the happy consequence that she met David Glen, whom she married in 1993.

The life of an auditor was not for Trina and she left the firm for a brief spell with the WM Company in Edinburgh before joining The Edrington Group in 1994 as financial controller with Robertson & Baxter. She then held a number of positions within the company, including commercial director and finance director for Highland Distillers and The Macallan, before being appointed to the Edrington board in May 2008.

In a warm tribute, chief executive of The Edrington Group, Ian Curle said that “such was Trina’s sheer strength of character and personality that she touched the hearts of everyone with whom she came in contact and was much admired by everyone within the business as well as our trading partners and competitors”.

Glen had been a driving force in many aspects of the business and had played a major role in turning Edrington into a leading player in the international drinks industry. In particular, she had recently overseen the transition and development of the group’s distribution arrangements following the restructuring at Maxxium Worldwide.

During her time as commercial director, Glen led the commercial team at Perth and oversaw the successful development of the group’s business in two important export markets: Asia and America.

Mr Curle added: “Trina’s intellect, enthusiasm and commitment to the business was a major driving force in the ongoing development of the group, and her appointment to the main board reflected the high esteem in which she was held.

“She will be remembered fondly as one of the group’s finest ever ser­vants who was respected by colleagues, friends and competitors. She was a wonderful human being, a warm and considerate friend and she will be sadly missed.”

Outside work, Glen was a keen sportswoman, particularly hockey, and enjoyed travelling the world with David, meeting friends

regularly and doting on her nephews and niece.

First diagnosed with breast cancer at the age of 34, she faced many personal battles over the next six and a half years with such dignity and positive outlook that at times it was hard to believe she was ill.

Self-pity was not for her and she would say: “Where there is hope we all have a duty to be hopeful.”

Her passionate belief in the need to maintain and support a positive mental attitude led her to found The Living Trust, a charity committed to funding projects which facilitate cancer patients continuing to lead normal lives. Such an action was typical of Glen: thinking of others before herself and using her own experiences to benefit others.

Granted her final wish, she died peacefully at home with David by her side.

As well as her husband, Trina is survived by her mother, Margaret, and sister, Sharon.