Cheta na ihe e dere n'okpuru ebe a ma zaa ajụjụ a na-eso ya n'otu asụsụ ahụ e dere n'ebe ahụ: Ihe e dere: Christian von Steven (Russian; 19 Jenụwarị 1781, na Fredrikshamn, Finland <unk> 30 Eprel 1863, na Simferopol, Crimea) bụ onye Russia a mụrụ na Finland bụ ọkà mmụta ihe ọkụkụ na ọkà mmụta banyere ụmụ ahụhụ. Ajụjụ: Olee mgbe von Steven nwụrụ?
30 Eprel 1863