▁in ▁ 1 8 1 0 , ▁where ▁he ▁became ▁personal ▁phys ician ▁to ▁Queen ▁Marie ▁of ▁Den mark , ▁a ▁Dan ish ▁Priv y ▁Coun c ill or ▁and ▁a ▁member ▁of ▁both ▁the ▁Royal ▁Dan ish ▁Academy ▁of ▁Sciences ▁and ▁Let ters ▁and ▁the ▁Royal ▁Swedish ▁Academy ▁of ▁Sciences . ▁The ▁Brand is ▁family ▁was ▁originally ▁a ▁pat ric ian ▁family ▁from ▁H ild es heim , ▁where ▁several ▁family ▁members ▁served ▁as ▁burg om aster s ▁from ▁the ▁ 1 5 th ▁century . ▁ ▁Career ▁ ▁He ▁studied ▁medicine ▁at ▁the ▁University ▁of ▁Frankfurt ▁and ▁at ▁the ▁University ▁of ▁Mar burg ▁from ▁ 1 9 3 6 ▁to ▁ 1 9 4 2 . ▁After ▁ear ning ▁a ▁doctor al ▁degree , ▁he ▁served ▁in ▁the ▁Army ▁Medical ▁Service ▁for ▁three ▁years . ▁In ▁late ▁ 1 9 4 5 ▁he ▁became ▁an ▁assistant ▁professor ▁in ▁Schloss berger ' s ▁research ▁group ▁at ▁the ▁Institute ▁for ▁Medical ▁Micro bi ology ▁and ▁In fection ▁Control ▁at ▁the ▁Go ethe ▁University ▁Frankfurt . ▁He ▁was ▁a ▁major ▁contrib utor ▁to ▁the ▁ 1 9 5 2 ▁edition ▁of ▁the ▁book ▁Ex perimental ▁B acter i ology . ▁He ▁earned ▁his ▁H abil itation ▁with ▁the ▁dis sert ation ▁Über ▁die ▁Prom unit ät ▁( De press ions imm unit ät ) ▁in ▁ 1 9 5 2 . ▁ ▁From ▁ 1 9 5 7 ▁he ▁was ▁Professor ▁Ord in arius ▁of ▁In fection ▁Control ▁at ▁the ▁University ▁of ▁Gött ingen