Despite legends of posadniks such as Gostomysl that were set in the 9th century, the term "posadnik" first appeared in the Primary Chronicle under the year 997. The earliest Novgorodian posadniks include Dobrynya (an uncle of Vladimir the Great), his son Konstantin Dobrynich and Ostromir, who is famous for patronizing the Ostromir Gospels, among the first books published in Russia (it is now housed in the National Library of Russia in St. Petersburg). Also mention in a document from year 1189 referenced in SDHK 44456.