Remembering Paul Costelloe: A Fashion Icon and Designer for Princess Diana

LONDON – Paul Costelloe, the illustrious designer renowned for his striking creations and association with Princess Diana, has passed away at the age of 80. Known for his strong-shouldered silhouettes and luxurious fabrics, Costelloe left an indelible mark on the fashion industry.

A Legacy of Elegance

On Saturday, Costelloe’s family expressed their deep sorrow at his passing due to a brief illness. A statement confirmed that he died peacefully in London, surrounded by his loving family, including his wife and seven children.

Influence on the Fashion Scene

Emerging in the 1980s alongside other Irish designers like Louise Kennedy, Costelloe became a pivotal figure in London’s vibrant fashion scene, helping to pave the way for emerging talents such as John Rocha and Orla Kiely. In 1984, he showcased his work at London Fashion Week, quickly establishing himself as a regular fixture on the calendar.

Lasting Impact and Collections

Costelloe’s final collection, which he presented for Fall 2025, was revealed earlier this year. His ability to blend charm with his royal connections allowed him to create a successful fashion business featuring menswear, accessories, and more. His designs emphasized practicality, utilizing materials native to Ireland, such as wool and linen, with production based in Italy.

Designer for Royalty

Costelloe gained prominence through his association with Princess Diana. In 1983, one of her ladies-in-waiting recognized the potential of his designs and introduced them to the young royal. Diana embraced Costelloe’s bold-shouldered jackets and elegant dresses, making him her personal designer until her untimely death in 1997.

A Diverse Career

Throughout his impressive career, Costelloe broadened his scope beyond catwalks, designing corporate uniforms for multinational corporations, including British Airways and Delta Airlines. Notably, he created the British Airways uniforms from 1992 to 2004, a significant achievement that solidified his reputation as a versatile designer.

Final Thoughts

Paul Costelloe’s contributions to the fashion world will not be forgotten. His distinct style, rooted in his Irish heritage, and his famous clientele have left a lasting legacy in both British and international fashion. He will be remembered not only for his creativity but also for his warmth and humor, which endeared him to many.