![John XXI, the Pope Philosopher and Physician–Scientist of Portuguese Origins Died of Crush Syndrome in 1277 | SpringerLink John XXI, the Pope Philosopher and Physician–Scientist of Portuguese Origins Died of Crush Syndrome in 1277 | SpringerLink](https://media.springernature.com/lw685/springer-static/image/art%3A10.1007%2Fs10943-020-01096-3/MediaObjects/10943_2020_1096_Fig3_HTML.jpg)
John XXI, the Pope Philosopher and Physician–Scientist of Portuguese Origins Died of Crush Syndrome in 1277 | SpringerLink
![Vintage Saint Pope John XXIII Holy Card 1960's | Etsy | Holy cards, Vintage holy cards, Pope saint john paul ii Vintage Saint Pope John XXIII Holy Card 1960's | Etsy | Holy cards, Vintage holy cards, Pope saint john paul ii](https://i.pinimg.com/originals/cc/2c/af/cc2caf6519d5818e403a2b1bcc426053.jpg)
Vintage Saint Pope John XXIII Holy Card 1960's | Etsy | Holy cards, Vintage holy cards, Pope saint john paul ii
Portuguese Culture and Style - Pope John XXI, born Pedro Julião (? – 1277), a Portuguese often identified with Pedro Hispano, was Pope from 1276 until his death about eight months later.
![Figure 1 from Medicus Petrus Hispanus (cl205-77 Peter of Spain): a XIII century Pope and Author of a Medieval Sex Guide | Semantic Scholar Figure 1 from Medicus Petrus Hispanus (cl205-77 Peter of Spain): a XIII century Pope and Author of a Medieval Sex Guide | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/0696c1fe4690e4d7820dfeb5c4d1dc5cff04923b/2-Figure1-1.png)