- Profession: King of Serbia.
- Relation to Mahler:
- Correspondence with Mahler:
- Born: 14-08-1876 Belgrade, Serbia
- Died: 11-06-1903 Belgrade, Serbia. Aged 26.
- Buried: 00-00-0000 St. Mark's Church, Belgrade, Serbia
Mentioned in diary Natalie Bauer-Lechner (1858-1921).
Alexander I or Aleksandar Obrenović was king of Serbia from 1889 to 1903 when he and his wife, Draga Mašin, were assassinated by a group of Royal Serbian Army officers, led by Captain Dragutin Dimitrijević.