Assertion: dynasty's emperor | /r/HasProperty | d. 1252
Facets:
Source sentences:
text: Reconciliation between Welfs and Hohenstaufens was achieved in 1235, when the emperor Frederick II enfeoffed Otto IV’s grandson, Otto the Child (d. 1252) with the duchy of Brunswick-Lüneburg, a shrunken remnant of what his ancestors had held in Saxony.