King Charles was "supportive" as Muslims broke their Ramadan fast inside Windsor Castle, a source has claimed.
Windsor Castle has opened its doors for the first open Iftar in the State Apartments' 1,000-year history.
More than 360 Muslim guests gathered in St George's Hall on Sunday to break their Ramadan fast.
The event marked a historic moment for the royal residence, with Muslims breaking their fast in the hall normally reserved for special banquets and state visits.
King Charles 'kept aware' as Muslims break Ramadan fast inside Windsor Castle
Getty / Ramadan Tent Project
This was the first Iftar gathering held in the State Apartments.
The free event was organised by the Ramadan Tent Project (RTP), a UK charity, with support from the Royal Collection Trust.
King Charles, who has long promoted interfaith dialogue, was "kept aware of" and "supportive" of the gathering, according to a source.
This follows Windsor Castle welcoming Iftar attendees for the first time last year, though that was held in the Learning Centre rather than the state apartments.
Muslims celebrated Iftar at Windsor Castle
Royal Collection Trust
The holy month of Ramadan began last Friday evening, with Muslims fasting between dawn and sunset throughout March.
Simon Maples, Windsor Castle's visitor director, said the event was part of the Royal Collection's aim to ensure access to its Palace is "enjoyed by everyone".
The gathering reflects the castle's commitment to welcoming people from all communities.
Maples said: "The event has been a fantastic opportunity to welcome people from the local community and those of all faiths and backgrounds to the castle."
The King is understood to have been 'supportive' of the event
Ramadan Tent Project
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Queen Camilla and King Charles recently marked the start of Ramadan by meeting members of London's Syrian community
GettyOmar Salha, RTP's founder, described the experience as "incredibly surreal and poignant".
He added: "It serves as a powerful reminder of how proud we are to represent a pillar of Britain's rich cultural ecology celebrating community, belonging and inclusion."
Salha also told the BBC: "The King is an excellent ambassador for this cause and is committed to community cohesion."
King Charles and Queen Camilla recently marked the start of Ramadan by meeting members of London's Syrian community at Imad's Syrian Kitchen restaurant.
