Dating anna kagan
Anna is known to have predeceased Vladimir by four years.
Thietmar of Merseburg, writing from contemporary accounts, mentions that Boleslaw I of Poland captured Vladimir's widow during his raid on Kiev in 1018.
He interpreted this evidence as pertaining to Vladimir's last wife.
The emigre historian Nicholas Baumgarten, however, pointed to the controversial record of the "Genealogia Welforum" and the "Historia Welforum Weingartensis" that one daughter of Count Kuno von Oenningen (future Duke Konrad of Swabia) by "filia Ottonis Magni imperatoris" (Otto the Great's daughter; possibly Rechlinda Otona [Regelindis], claimed by some as illegitimate daughter and by others legitimate, born from his first marriage with Edith of Wessex) married "rex Rugorum" (king of Russia).As her father Vladimir died about 25 years before that marriage and she was still young enough to bear at least five children, including two future Polish dukes (Boleslaw II of Poland, who later became a king, and Wladyslaw Herman), it is thought probable that she was Vladimir's daughter by the last marriage.There is also a case for Yaroslav's descent from Anna.His children by these marriage were probably Svyatoslav of Smolensk, killed during the 1015 internecine war, and Mstislav of Chernigov.Some chronicles, however, report that Rogneda was Mstislav's mother.