7-dehydrocholesterol (sometimes known as provitamin D3) is a chemical that, in the presence of ultraviolet light, is converted by the body to previtamin D3 which is then isomerized into Vitamin D3.
... Egyptian pharaohs:
Ramses I[?]
Ramses II ("The Great")
Ramses III
Ramses IV[?]
The name means "Child of the Sun".
This is a disambiguation page; that is, one ...