After being warmly greeted by Rhian with her mother’s welsh cakes, William sat down to discuss the stigma around suicide.
The pair began by catching up following their first meeting in 2017.
As the conversation moved on to Rhian’s late husband Paul’s tragic death, the royal quickly became teary-eyed.
Responding to William’s question of what she would say to Paul if she could turn back the clock, Rhian said: “There is only one thing I would ever say to him if I had time with him and that would be ‘why didn’t you speak to me?’
“He’s missed out on just so much joy and we would have been ok.”
Her heartbreaking response prompted the Prince of Wales to break down in tears.
He then proceeded to apologise to Rhian, to which she replied: “No it’s fine, it’s hard and you have experienced loss yourself.”
He then took a deep breath and regained his composure to continue the conversation.
As their discussion continued, William said: “The best way to prevent suicide is to talk about it.
“Talk about it early. Talk about it with your loved ones – those you trust, your friends.”
He then concluded: “So thank you for talking about it.”
Rhian responded by extending the same thanks, saying: “Well thank you for talking about it too.”
After their conversation, William met Rhian and Paul’s two other children, Hollie and Isaac.
He gave Rhian an affectionate hug before the pair parted ways.
The mother tragically lost her husband and one-year-old son within just five days of each other in 2012.
In a new film made in honour of World Mental Health Day, Rhian opens up about her family’s devastating loss.
Kate and William are launching the National Suicide Prevention Network today.
Backed by £1m funding from The Royal Foundation for three years, the network looks to find ways to prevent suicide.
In the film, Rhian recounts the day that her son, George, suddenly fell ill and was rushed to hospital, where he tragically died but hours later.
Rhian went on to say that just five days later “the unimaginable happened.”
Paul walked out the door and never came home after choosing to take his own life.
In an attempt to describe her experience, Rhian said: “It’s really difficult to explain how grief feels – emptiness, physical pain, your heart hurts.
“When you lose somebody to suicide it leaves so many questions unanswered.”
In a call to action, she continued: “Let’s stand together, let’s talk about it.
“We can help each other, this really doesn’t have to be what happens.”