Nyorai kupfuurira kweiyi ndima - Ernst August Hagen akaberekerwa muKönigsberg, panguva iyoyo guta guru reEast Prussia (uye kweanenge makore gumi pashure pa 1806
apo mambo akatiza muBerlin, musha wePrussian Court). Baba vake, Karl Gottfried Hagen (1749-1829) vaiva nyanzvi yemakemikari uye vaiva muchengeti wemishonga yomudare.