The Iraqi Taha al-J is at the trial for the death of an enslaved Yazidi girl.
has been sentenced to life imprisonment.
The Frankfurt Higher Regional Court (OLG) announced the judgment on Tuesday.
The charges were genocide, crimes against humanity, war crimes, human trafficking and murder.
After the verdict was announced, the accused slumped and was no longer accessible.
The process had to be interrupted at short notice.
In their plea at the beginning of November, the Federal Prosecutor's Office had demanded a life sentence and the determination of a particular gravity of the guilt.
The defense lawyers rejected the allegations and did not make a specific request in their plea.
As a suspected member of the terrorist militia “Islamic State” (IS), Al-J.
among other things, held and abused a Yezidi and her daughter as slaves between July and September 2015.
In order to punish the five-year-old, he is said to have handcuffed her to a window grille in the scorching heat in the courtyard of the property in Fallujah, Iraq, where the child died of thirst, according to the indictment.
ISIS systematically persecuted the Yazidis religious community.