Abu Bakr al-Baghdadi.
Abu Bakr al-Baghdadi making his public appearance in Mosul.Reuters File

Several new information that could give more insight into the life of Abu Bakr al-Baghdadi, the leader of the notorious militant group Islamic State (Isis), have been released online.

A declassified document acquired by Business Insider claims that the real name of the Islamic State leader is Ibrahim Awad Ibrahim al-Badry, a 43-year old married man.

The documents that have been posted on Scribd also contain a prison image of the Isis leader that shows him as a bespectacled man with a beard and slightly receding hairline.

Check out the pictures here. 

The prison records claim that he held a secretary's job and was arrested as a 'civilian,' which means he had no known militant association at the time of his arrest.

Isis Leader's School Days

The German broadcaster ARD also has released a series of documents that include a certificate of Iraqi citizenship and a high school graduation paper, besides several images of the dreaded leader of the Islamic State militant group.

His school records claim that he was born in Samarra, an Iraqi city located near the bank of the Tigris River in the Salah ad-Din Governorate in 1971.

One of the images shows a young Baghdadi with a beard and wearing a white turban and white robe.

As a young student in the Samarra High School, al-Baghdadi excelled in Mathematics and Geography. His records show that he scored high marks and might have been a promising student. English seems to have been the only language he struggled with.

In Mathematics, his certificates show, he scored a neat 98%, Geography 90%, Arabic language studies 80% and History 75%. However, in English he scored the least -- 57% with 50% being the pass mark.