Biagota (born c. 920)[1] was probably the wife of duke Boleslaus I of Bohemia.
[2] Michal Lutovský writes in his book Bratrovrah a tvůrce státu (Fratricide and country-maker) that only a few coins confirm the existence of Biagota.
These coins are considered the oldest type of Přemyslid denar.
Possibly these coins were made on the occasion of marriage, but there is no proof for it.
She could have originated from one of the German states of the Holy Roman Empire or from a Slavic country (Blahota or Bjegota was an old Bulgarian name).