Mieszko II advances with the Polish army…
September 1015 CE
Mieszko II advances with the Polish army to Meissen and tries unsuccessfully to besiege the castle of his brother-in-law, Margrave Herman I (husband of his sister Regelinda).
During the fighting, Polish bowmen kill Margrave Gero and two hundred other German knights; Boleslaw allows the Bishop of Meissen, Eido, to recover the bodies for burial.
Henry II withdraws as a result of these setbacks; the fighting stops in autumn.
Subsequent negotiations with Boleslaw I fail.