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What might be considered the oldest "autograph" is a Sumerian clay table from about 3100 BC which includes the name of the scribe Gar.Ama. No ancient written autographs have been found, and the earliest one known for a major historical figure is that of El Cid from 1098.[4]
"Autograph" can refer to a document transcribed entirely in the handwriting of its author, as opposed to a typeset document or one written by an amanuensis or a copyist. This meaning overlaps that of "holograph".[3]
Law of agency#Allograph – Person representing another person in legal matters, and the laws enabling this, specifically a signature made by an agent on behalf of a principal