The above quote is attributed to Lady Nancy Witcher Langhorne Astor, on her deathbed. Apparently she woke up surrounded by family, was momentarily confused, and then passed on.

Last Words has a great listing of such quotes, from both real people and fictional characters.

We'll never forget Charles Foster Kane's parting sentiment, "Rosebud." And I'm sure it won't take much work to guess which character said this, "Precious, precious, precious! My Precious! O my Precious!"

The site also includes epitaphs. I thought it was interesting that while some go on and on, Bela Lugosi's merely says "Beloved Father." So I thought I'd check it out. I popped over to his page at Find a Grave and, sure enough there it is. Simple and sweet.