Æthelstan A

"Æthelstan A" is the name given by historians to an unknown scribe who drafted formal documents, almost always in Latin, by which the king made grants of land, for King Æthelstan of England between 928 and 935.

Nonsensical (mis)pronunciation
On 10 April 2018, an anonymous user edited the Wikipedia article on mobile to change the pronunciation of A in Æthelstan A from "eɪ" to "exjisjdi sksisixjndiidjcjdidj ijd". It was reverted a minute later.