JOHN XXI
Online Encyclopedia
Originally appearing in Volume
V15,
Page 436
of the 1911 Encyclopedia Britannica.
JOHN XXI
. has been identified since the 14th century, most probably correctly, with Petrus Hispanus, a celebrated Portuguese physician and philosopher, author of several medical works—notably the curious Liber de oculo, trans. into German and well edited by A
.
M
.
Berger ( Munich, 1899), and of a popular textbook in logic, the Surnmulae logicales
.
John XXI. is constantly referred to as a magician by ignorant chroniclers
.
See Les Registres de Gregoire X. et Jean XXI., published by J
.
Guiraud and E .Cadier in Bibliothegue des ecoles frangaises d'Athines et de Rome ( Paris, 1898) ; A
.
Petthast, Regesta pontif
.
Roman., vol
.
2 ( Berlin, 1875) ; F
.
Gregorovius, Rome in the Middle Ages, vol. v., trans.byMrs G.W
.
See also: - HAMILTON
- HAMILTON (GRAND or ASHUANIPI)
- HAMILTON, ALEXANDER (1757-1804)
- HAMILTON, ANTHONY, or ANTOINE (1646-1720)
- HAMILTON, ELIZABETH (1758–1816)
- HAMILTON, EMMA, LADY (c. 1765-1815)
- HAMILTON, JAMES (1769-1831)
- HAMILTON, JAMES HAMILTON, 1ST DUKE OF (1606-1649)
- HAMILTON, JOHN (c. 1511–1571)
- HAMILTON, MARQUESSES AND DUKES OF
- HAMILTON, PATRICK (1504-1528)
- HAMILTON, ROBERT (1743-1829)
- HAMILTON, SIR WILLIAM
- HAMILTON, SIR WILLIAM (1730-1803)
- HAMILTON, SIR WILLIAM ROWAN (1805-1865)
- HAMILTON, THOMAS (1789-1842)
- HAMILTON, WILLIAM (1704-1754)
- HAMILTON, WILLIAM GERARD (1729-1796)
( London,19oo-1902) ; R.Stapper, Papst Johann XXI
.
( Munster, 1898) ; J
.
T
.
Kohler, Vollstandige Nachrichf von Papst Johann XXI
.
( Gottingen, 176o)
.
(C
.
H
.
End of Article: JOHN XXI
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