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Holy Roman Empire–Piast Dynasty Relations (1010s)

Type Event Region Central Europe Time 1010–1020

In the 1010s, relations between the Holy Roman Empire and Poland's Piast dynasty swung violently between alliance, marriage, tribute, and war.

Timeline

  1. 1010–1013Quedlinburg · Holy Roman EmpireHenry II and Bolesław I at one point allied against Bohemia and pagan tribes; through marriage negotiations (Bolesław's son to the imperial family) they consolidated ties, and Bolesław received a ducal title and expanded eastward.
  2. 1014–1015Polish–imperial eastern frontier · PolandBolesław refused to support Henry II's campaign against the Lutici; military conflict erupted over Lusatia's ownership and suzerainty, the imperial eastern campaign failed, and German–Polish relations entered a phase of full confrontation.
  3. 1016–1020Bautzen (present-day Poland) · PolandAfter the conflict both sides resumed diplomatic contact; a peace treaty was signed at Bautzen in 1018, Bolesław gave up some occupied lands and restored his vassalage to the empire, which recognized part of Poland's eastern expansion, paving the way for Bolesław's coronation as King of Poland in the 1020s.

Sources