Fashion designer Paul Costelloe died at age 80 on November 21, 2024, following a fall at his London home, Westminster Coroner’s Court heard. Coroner Jean Harkin ruled the death accidental, noting it was contributed to by acute myeloid leukaemia. Costelloe, a fixture of London Fashion Week since 1984, was widely recognized for his 14-year tenure as a personal designer for Diana, Princess of Wales.
How Paul Costelloe Shaped Modern Fashion
Costelloe’s influence on the British fashion industry remains significant due to his long-standing presence at London Fashion Week. According to his family’s statement provided to the court, he was the only designer to present a collection at every London Fashion Week since its 1984 inception. His aesthetic, characterized by bold florals and exaggerated silhouettes, became a staple of 1980s royal style.
The Transition of the Paul Costelloe Label
The future of the Paul Costelloe brand is now under the direction of the designer’s son, William Costelloe. Following the designer’s death, the family confirmed that the business will continue operations. William Costelloe led his first London Fashion Week show for the label in February 2025, marking a formal transition of creative leadership.
The label faces the challenge of maintaining its heritage while adapting to modern retail demands. Historical precedent for family-run luxury brands suggests that succession often hinges on maintaining the founder’s “design DNA” while integrating new management strategies. According to the family, they remain committed to the values of “kindness, humility and self-determination” that the elder Costelloe instilled in the company.
What Led to the Coroner’s Ruling?
Coroner Jean Harkin concluded that the death was accidental, though it was “hastened by underlying acute myeloid leukaemia.” The court heard that Costelloe had maintained an independent lifestyle until his cancer diagnosis in June 2025. Following a fall on November 7, he was treated at Chelsea and Westminster Hospital and subsequently transferred to St Mary’s Hospital, where he died surrounded by his wife, Anne, and their seven children.
Frequently Asked Questions
Who is currently leading the Paul Costelloe fashion house?
William Costelloe, the son of the late designer, has taken over the label and led his first show at London Fashion Week in February 2025.
How long did Paul Costelloe design for Princess Diana?
He served as a personal designer for Diana, Princess of Wales, for 14 years, from 1983 until her death in 1997.
What were the primary factors in Paul Costelloe’s death?
Westminster Coroner’s Court ruled the death was accidental, resulting from a fall, and noted it was contributed to by acute myeloid leukaemia.
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