At this time Charles V, the Holy Roman emperor, ruled over large parts of Europe as King of Spain and Archduke of Austria with a Spanish and Habsburg empire covering Europe from Spain and the Netherlands to Austria and Italy. It seems likely that Charles himself had studied cosmography, a useful subject for a ruler of so large an empire, under Apian around 1530.
Sa oras na ito Charles V, the Holy Roman emperador, pinasiyahan sa malaking bahagi ng Europa bilang Hari ng Espanya at Archduke ng Austria sa isang Spanish at Habsburg imperyo takip sa Europa mula sa Espanya at ang Netherlands sa Austria at Italy. Mukhang malamang na Charles kanyang sarili had-aral ng cosmography, isang kapaki-pakinabang na paksa para sa isang pinuno ng mga ito ng isang malaking imperyo, sa ilalim ng Apian sa paligid ng 1530.