Has Lilibet Mountbatten-Windsor -- the daughter of Prince Harry and Meghan, the Duchess of Sussex -- died? No, that's not true: There is no evidence that Lilibet has died at the time of writing and a video making the claim doesn't attempt to provide any such evidence.
The claim appeared in a Facebook post on July 6, 2022. The post includes a video with the title:
TODAY! FUNERAL SAD: Meghan and Harry bid farewell to the sudden departure of their daughter Lilibet
This is what the post looked like on Facebook at the time of writing:
(Source: Facebook screenshot taken on Mon Jul 11 14:31:31 2022 UTC)
The source of the text appeared to be a tabloid article from the Express published on July 5, 2022. Neither the article nor the audio of the video ever mentioned that Lilibet died: Rather, both primarily focused on the possibility of another high-profile interview of Harry and Meghan by Oprah Winfrey. Thus, the video contained no evidence that Lilibet died, much less that there was any funeral for her as the title claimed.
There do not appear to be any legitimate reports (archived here) that Lilibet died. Harry and Meghan did not post any evidence that could corroborate the claim on the news page of their organization Archewell.
Lead Stories has previously debunked a claim that Meghan's mother Doria Ragland announced that Lilibet has Down syndrome. That fact check can be found here.