This appears to be false or at the very least unsubstantiated. I was unable to find any credible reporting that Kate Middleton issued a live, emotional message saying “Farewell, my father…” with the kind of dramatic details described.

Here’s a breakdown of what is known, and why the claim doesn’t check out:

 What is true

• Kate Middleton (officially the Princess of Wales) publicly announced a cancer diagnosis in a video message in March 2024.
• In that message she said she had undergone major abdominal surgery in January, initially thought it was non‑cancerous, then later tests revealed cancer.
• She spoke about focusing on recovery, supporting her young family, and addressing the issue with her children.
• There is no credible report of a message announcing the death of her father or a live video saying “Farewell, my father…” with the tone described.

Why the claim is extremely likely false

• No reputable news outlet (BBC, major UK papers, major global agencies) is reporting such a message or event.
• The claim uses sensational, click‑bait style phrasing (“1 MIN AGO!”, “The Whole Nation Weeps”, “Palace doors have closed”) with no verifiable source.
• The phrase “farewell, my father” implies her father (or father‑figure) has died or is dying. However, Kate’s father, Michael Middleton, remains alive (to public knowledge) and there has been no official announcement of his death.
• When public figures release major statements of this kind, especially royal ones, they are reported by multiple established sources — and we see no trace of such coverage.

 What to do / what to watch

• If you come across a link to a video, check if it is from a credible source (e.g., an official royal social‑media account, or a verified news outlet).
• Be cautious of posts with sensational headlines but no corroborating evidence — they often turn out to be hoaxes or manipulated.
• If an important event involving a member of the royal family has happened, news wires (Reuters, AP) would likely cover it — so a quick search there is a good test.

If you like, I can check very recent news up to the minute (including smaller outlets) to see if anything new has emerged — would you like me to do that?