Uslad
Uslad is a Slavic pseudo-deity, whose name appeared from the misreading of the words 'усъ златъ' from the Primary Chronicle. This misinterpretation / misreading was recognized already in the 19th century, by e.g., Izmail Sreznevsky.
History
Original misinterpretation
When reading the Primarily Chronicle in the part in which Slavic pagan idols erected by Vladimir of Kiev are described, Sigismund von Herberstein recognized the words "golden moustache" in the description of the statue of Perun as an independent name Uslad.In the Primary Chronicle:
Modern English translation:
Herberstein's translation:
Polish historian Maciej Stryjkowski in his 1582 Chronicle duplicated this misreading:
A reference to this deity was subsequently copied by a number of other authors.
This mistake was further propagated by German traveler Johann David Wunderer, who traveled in Russia from 1589 to 1590 and described Pskov in his memoir, mentioned the statues of Khors and Uslad that were supposed to be located near Pskov:
Russian archaeologist Anatoliy Kirpichnikov questioned Wunderer's interpretation of the find.