Both the Mercator Globe and the Giovio Globe show an (imagined?) Southern Continent (QUINTA), but the Giovio Globe is replete with (definitely imagined) detail in the area of the continent opposite Cape Horn, detail largely absent from the Mercator Globe.  The Mercator Globe and the Giovio Globe both draw several toponyms from Antonio Pigafetta’s account of his voyage with Magellan: C. des 11000 Virgnes (C. d. 1100 Virgnes on the Giovio Globe), R. d Sardines, Fretum Pathagnicum and le cap desire.  Two other names on the Giovio Globe that are not present on the Mercator Globe can also be traced to Pigafetta’s account: Terra del Fuego and I Nevada.  The Giovio Globe toponym CAMPAGNA DE RODAN is found on Gastaldi 1546 World Map as CAMPAGNA DE ROLDAN.   All the other toponyms of the Giovio Globe also appear on Gastaldi’s later 1561 nine sheet world map, but the source for the names, as well as for the fanciful geographical features, is unknown.  See the toponomy table below for further information on place names.  Note that one name, C. maalconsulo, appears on the Giovio Globe, the Forlani Map of South America of 1566, but not on Gastaldi’s World Map of 1561.  This pattern represents a variation of the norm, where names and inscriptions sometimes appear on the Giovio Globe and the Gastaldi 1561, but not on the series of Forlani maps published subsequent to 1561.

The table below, keyed to Shirley’s The Mapping of the World, comments on selected printed world maps with toponyms in Magellan Straits.

S#	Author	Date	Comments
71	Anon (Nuremberg?)	1535?	Only four toponyms: C de scudo, C. de los Fugas?  Others not too legible in Shirley but seem unrelated to GG toponyms.
73	Caspar Vopel	1536	Similar to Nuremberg 1535
78	Mercator	1541	Only two toponyms: R de sardines and le cap desire
81	Sebastian Cabot	1544	Many names, but none legible in Shirley.   Needs to be checked further.
85	Gastaldi	1546	A few names.  First appearance of Campagna de Roldan. Others appear unrelated to GG.
89	Gastaldi/Pagano	1550	See 85 above
98	Calapoda	1555	More names, but illegible in Shirley.  May be first appearance of Italian sourced toponyms.
101	Givara	1556	Only a few names. Hard to read, but look unrelated
106	Forlani	1560	Many names including Campagna de Roldan.   Others illegible in Shirley.
107	Gastaldi	1561	Almost complete correspondence to GG toponyms.  Refer to detail in Table of Toponyms.
112	Forlani	1562	See 106 above
114	Ortelius	1564	Almost complete correspondence to GG toponyms
119	Mercator		Almost complete correspondence to GG toponyms, except Mercator, here, eliminates the two toponyms from his 1541 globe!
129	Sanuto	1574	Almost complete correspondence to GG toponyms