![Pope Sixtus I (? - ca 126-128), engraving. Italy, 2nd century, Stock Photo, Picture And Rights Managed Image. Pic. DAE-10121794 | agefotostock Pope Sixtus I (? - ca 126-128), engraving. Italy, 2nd century, Stock Photo, Picture And Rights Managed Image. Pic. DAE-10121794 | agefotostock](https://previews.agefotostock.com/previewimage/medibigoff/548831c13229d82941b5f28728e6793e/dae-10121794.jpg)
Pope Sixtus I (? - ca 126-128), engraving. Italy, 2nd century, Stock Photo, Picture And Rights Managed Image. Pic. DAE-10121794 | agefotostock
![Portrait of Pope Sixtus I by Giovanni Battista de'Cavalieri (1526-1597): Fair | The Online Portrait Gallery Portrait of Pope Sixtus I by Giovanni Battista de'Cavalieri (1526-1597): Fair | The Online Portrait Gallery](https://pictures.abebooks.com/inventory/31423964024.jpg)
Portrait of Pope Sixtus I by Giovanni Battista de'Cavalieri (1526-1597): Fair | The Online Portrait Gallery
![File:Pedro Berruguete, Portrait of Pope Sixtus IV della Rovere (early 1500s), Cleveland Museum of Art.jpg - Wikimedia Commons File:Pedro Berruguete, Portrait of Pope Sixtus IV della Rovere (early 1500s), Cleveland Museum of Art.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/thumb/1/10/Pedro_Berruguete%2C_Portrait_of_Pope_Sixtus_IV_della_Rovere_%28early_1500s%29%2C_Cleveland_Museum_of_Art.jpg/718px-Pedro_Berruguete%2C_Portrait_of_Pope_Sixtus_IV_della_Rovere_%28early_1500s%29%2C_Cleveland_Museum_of_Art.jpg)
File:Pedro Berruguete, Portrait of Pope Sixtus IV della Rovere (early 1500s), Cleveland Museum of Art.jpg - Wikimedia Commons
![ORTHODOX CHRISTIANITY THEN AND NOW: The Infallibility of the Bishop of Rome and the Comical Case of Pope Sixtus V ORTHODOX CHRISTIANITY THEN AND NOW: The Infallibility of the Bishop of Rome and the Comical Case of Pope Sixtus V](https://1.bp.blogspot.com/_qpE5hNwi618/TEcCzyIc4GI/AAAAAAAAINI/IA6opDqBLn0/s1600/Pope+Sixtus+V.jpg)