Melchizedek
From Bahai9
Certainly a prophet but date and location of appearance unknown[edit]
"Melchizedek was certainly a prophet, but we do not know even the approximate date of his appearance, or where he appeared."
- (On behalf of Shoghi Effendi, 1938-07-13, cited in Bahá’í Studies Bulletin, Vol I #2 September 1982 p. 61)