Vladimir I, Tsar of Russia

Vladimir I Sviatoslavovich (958 - 15 July 1015) was the youngest son of Sviatoslav I and his second wife Malusha I, and the only son to survive the feud. He took over Kievan Rus' and ruled it from 980 to 1015. He had multiple wifes and concubines:

Olava/Allogia gave him one son: Vysheslav (977 - 1010)

The widow of Yaropolk I (the Greek nun): Sviatopolk I (possibly his brother's surviving son).

Rogneda gave him eight issue: Izyaslav, Yaroslav I, Vsevolod, Mstislav, Msislav, Predslava, Premislava, and Mstislava.

Adela gave him four issue: Boris, Gleb, Stanislav, and Sudislav.

Malfrida gave him a son: Sviatoslav.

Anna: Theofana

A granddaughter of Otto I gave him one daughter: Mariya.

Other relatives: Vladimirovna and Pozvizd.