section_path: Early life and professional career
section_name: Early life and professional career
paragraph_text: Early life and professional career
  
  Born in the old city centre of Sibiu to a Transylvanian Saxon family, Klaus Iohannis is the eldest child of Gustav Heinz and Susanne Johannis. He has a younger sister, Krista Johannis (born 1964). His father worked as a technician at a state-owned company, while his mother was a nurse. Both his parents as well as his sister emigrated from their native Sibiu/Hermannstadt to Würzburg, Bavaria in Germany in 1992, acquiring citizenship there under the right of return granted by the German nationality law, as most other Transylvanian Saxons after the fall of the Iron Curtain. However, he chose to live and work in Romania.
  
  After graduating from the Faculty of Physics of the Babeș-Bolyai University (UBB) in Cluj-Napoca in 1983, Iohannis worked as a high school physics teacher at various schools and colleges in his native Sibiu, including, from 1989 to 1997, at the Samuel von Brukenthal National College, the oldest German-speaking school in Romania. From 1997 to 1999, he was Deputy General School Inspector of Sibiu County, and from 1999 until his election as mayor in 2000, he was the General School Inspector, head of public schools in the county.