Lady Louise was joined at the ceremony by her boyfriend, Felix da Silva-Clamp, whom she met while studying at university.
The couple previously participated together in the St Andrews Officers' Training Corps during the St Andrews Regiments' Parade last November.
An unnamed source told HELLO!
magazine that Lady Louise remained professional during the parade and did not interact with da Silva-Clamp while in rank.
However, the couple has appeared together at multiple equestrian events, including the National Carriage Driving Championships in September 2025.
An onlooker told HELLO! magazine that Lady Louise was elated and broke into a lovely little grin afterwards.
Her graduation has prompted discussions among royal experts regarding her future role.
Royal commentator Richard Fitzwilliams stated that Lady Louise possesses enormous potential due to her charitable commitments and military interests.
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Etiquette expert Laura Windsor suggested her gap year choices reflect a preference for a private life over public service.
