Background
She was the daughter of Saint Vsevolod, Prince of Novgorod and Pskov by his wife, a daughter of Svyatoslav Davidovich, Prince of Chernigov. Around 1137 she was married with Bolesław, son of the Polish Duke Bolesław III Wrymouth.
She was the daughter of Saint Vsevolod, Prince of Novgorod and Pskov by his wife, a daughter of Svyatoslav Davidovich, Prince of Chernigov. Around 1137 she was married with Bolesław, son of the Polish Duke Bolesław III Wrymouth.
She had two brothers, Ivan and Vladimir (who was confused in several sources as husband of Princess Richeza of Poland). Both died unmarried and apparently childless. Prince Bolesław received the Masovian state as Bolesław IV, Duke of Masovia and Kuyavia, and Viacheslava became in the Duchess consort.
Duchess Anastasia"s Gospel Book
Anastasia was probably the Latin or Greek equivalent of her name, according to her chronicler January Długosz.
Also, he named Viacheslava Princess of Halicz and placed her death in 1158 during childbirth. The wedding date of 1151 given by the chronicler is incorrect.
The Gospel Book was probably made around 1160. Before 1160, she bore a second child, a daughter, later wife (1178) of Vasilko Iaropolkovich, Prince of Shumsk and later of Dorohychyn.
Prince Bolesław died in 1172 aged sixteen, and reportedly his father was devastated by his early death.
One year later (1173), High Duke Bolesław IV died, leaving his Masovian-Kujavian principality to his second and only surviving son Leszek, at the age of eleven or less.