Dee ihe na-esote paragraf a - A mụrụ Langgaard na 12 Mee 1811 na Copenhagen, nwa nwoke nke onye na-arụ ọrụ elekere Jens Bartholomæus Langgaard (1782<unk>1832) na Marie Christiane Harm (s) (1784<unk>1822). Nna ya gụrụ akwụkwọ na Aalborg ma kwaga Copenhagen na 1806 ebe ọ ghọrọ onye njikwa na onye nwe nnukwu ụlọ ahịa elekere na ngwa. Ọ dara n'ụgwọ n'ihe metụtara akụnaụba steeti Denmark nke 1813
Ọ dị mma. Ezinụlọ ahụ kwagara na mbụ Berlin na mgbe e mesịrị, Landsberg an der Warthe. Mgbe nna ya nwụsịrị, Langgaard ghọrọ onye nkuzi na-arụ ọrụ elekere na Rugen wee kwaga Copenhagen ebe ọ na-arụ ọrụ na Urban Jürgensen. Ọ kpọtakwara ụmụnne ya ndị nke ọ tọrọ na Copenhagen.