Azzo II of Este
Azzo II of was born about 1000.¹   Azzo II of is no longer alive.

 Guelph Of Bavaria Welf
Guelph Of Bavaria was born about 1030 in Altdorf, Swabia (King Welf I) and his baptism took place in 1070 in Bavaria - Duke Welf I.¹   He died on November 9th, 1091 in Bavaria (King of the Guelphs) (Welf).¹