Whakakihia te rerenga e whai ake nei: I whanau a Langgaard i te 12 o Mei 1811 i Copenhagen, te tama a te kaihanga karaka a Jens Bartholomæus Langgaard (1782<unk>1832) me Marie Christiane Harm ((s) (1784<unk>1822). I ako tana papa i te mahi karaka i Aalborg engari i neke ki Copenhagen i te tau 1806 i reira ia i noho ai hei kaiwhakahaere me te rangatira o te umanga karaka me te taputapu nui. I pāngia e ia i runga anō i te
Ko te whakangao o te kāwanatanga o Rānana i te tau 1813. I muri mai ka neke te whanau ki Berlin tuatahi, a muri mai, Landsberg an der Warthe. Whai muri i te matenga o tona papa, i ako a Langgaard hei kaihanga karaka i Rugen ka neke ki Copenhagen i reira i mahi ai ia ki Urban Jürgensen. I kawea hoki e ia ana teina ki Copenhagen.