Boleslaw IV
Prince of Masovia and Kuyavia (1138-46), of Kraków, Gniezno and Kalisz (1146-73), of Sandomierz (1166-73), married aged 12 with Viacheslava, daughter of Vsevolod, Prince of Pskov. Jan Dlugosz reported his birth in 1127 as the second son born from Boleslaw and Adelaide. |
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