From medical rumors to a possible upper-crust grow op, a new story is once again linking King Charles III to cannabis. This time, however, it has nothing to do with health speculation or the monarch’s well-known passion for botany. Instead, the connection comes by way of a police raid at a historic property tied to his royal past.
Police in North Wales discovered a large-scale illegal cannabis cultivation operation inside Plas Glynllifon, a 19th-century mansion that hosted the investiture ball for then-Prince of Wales Charles—now King Charles III—in 1969.
According to North Wales Police, officers executing a search warrant under the Misuse of Drugs Act uncovered what they described as a “significant grow operation” on the building’s top floor. Superintendent Arwel Hughes told the BBC: “We uncovered a grow, which was on the top floor of the building. We estimate around 12 rooms with grows in them and they were fairly mature plants.”
Authorities also confirmed that the operation relied on illegally tampered electrical systems and diverted water lines into the building—common hallmarks of sophisticated clandestine grow sites.
No arrests have been made so far, though police say forensic work and digital evidence analysis remain ongoing as the investigation continues.
A Royal-Era Mansion Turned Into an Indoor Grow
The story quickly drew attention across the UK not only because of the operation’s scale, but because of the property itself. We’re talking about Plas Glynllifon, a sprawling aristocratic mansion with a dramatic history, decaying interiors, and its own local folklore. Most notably, the estate hosted the official ball following King Charles III’s 1969 investiture as Prince of Wales, tying the now-crumbling property directly to modern royal history.
Alan Fryer / Plas Glynllifon
Built in the 1830s near Caernarfon in Gwynedd, the Grade I-listed neoclassical mansion once belonged …
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Author: Camila Berriex / High Times
