Guglielmino may refer to: Guglielmino degli Ubertini (circa 1219 – 1289), Italian condottiero and bishop of Arezzo Edward Guglielmino, Australian musician
of the Battle of Campaldino (1289), which saw the death of Bishop GuglielminoUbertini [it], the fortunes of Ghibelline Arezzo started to ebb, apart from
Ghibelline force from Arezzo including the perhaps reluctant bishop, Guglielmino degli Ubertini, in the plain of Campaldino, which leads from Pratovecchio to