Out of curiosity: would it be considered a Hohenstaufen/Luxemburg wank if OTL people had better luck begetting boys?
I mean, Barbarossa had several sons - two who were betrothed to Hungarian and Danish princesses respectively before dying young - but only one male line grandson, Friedrich II. Philipp of Swabia had two sons, but both were either stillborn/miscarried/died at birth.
Same could be said for Emperor Karl IV. He likewise only had one male-line grandchild (Eliska of Luxemburg, who married Albrecht of Habsburg), although his eldest son was married twice. His younger son was married to a widow who was quite a bit older than him, so I think that'd still be childless (maybe if said son were to marry his original betrothed - a Lorrainer princess IIRC). Johann Heinrich of Moravia (Karl's brother) had no male line grandkids.
I mean, Barbarossa had several sons - two who were betrothed to Hungarian and Danish princesses respectively before dying young - but only one male line grandson, Friedrich II. Philipp of Swabia had two sons, but both were either stillborn/miscarried/died at birth.
Same could be said for Emperor Karl IV. He likewise only had one male-line grandchild (Eliska of Luxemburg, who married Albrecht of Habsburg), although his eldest son was married twice. His younger son was married to a widow who was quite a bit older than him, so I think that'd still be childless (maybe if said son were to marry his original betrothed - a Lorrainer princess IIRC). Johann Heinrich of Moravia (Karl's brother) had no male line grandkids.