The map can be found at http://upload.wikimedia.org/wikipedia/commons/0/08/1544_Battista_Agnese_Worldmap.jpg (download the full resolution version). Instructions to create a map theme from it are at http://techbase.kde.org/Projects/Marble/HistoricalMaps. This map requires morphing via gtkmorph
This one is done already but needs a nice legend.
I'll upload it to GHNS as well. We can fix the legend in an update.
SVN commit 1356045 by nienhueser: Add 1544 Battista Agnese historic map theme M +10 -0 maps-4.5.xml WebSVN link: http://websvn.kde.org/?view=rev&revision=1356045