Adolf Hitler - Has DNA proved who is Hitler’s grandfather and was it a German custom to have children out of wedlock?

He had many women, Adolfus Hitler MP
German: Adolf Hitler, Russian: Адольф Гитлер
Gender: Male
Birth: April 20, 1889
Braunau am Inn, Upper Austria, Austria
Death: April 30, 1945 (56)
Berlin, Germany (Suicide by Cyanide poisoning and self-inflicted gunshot wound)
Place of Burial: Cremated
Immediate Family:
Son of Alois Hitler (Schicklgruber), Sr. and Klara Hitler (Pölzl)
Husband of Eva Anna Paula Hitler (Braun)
Brother of Gustav Hitler; Ida Hitler; Otto Hitler; Edmund Hitler and Paula Hitler / Wolff
Half brother of Alois Hitler (Matzelsberger), Jr. and Angela Franzska Johanna Hitler

Birth Record: http://data.matricula-online.eu/de/oesterreich/oberoesterreich/brau...
No middle name "Jacob" in the birth record.

Adolf Hitler was an Austrian-born German politician and leader of the Nationalsozialistische Deutsche Arbeiterpartei, commonly known as the Nazi party. The Nazi party are known for the persecution and genocide of Jewish and Polish people and homosexuals, among others.
It is speculated his middle name is Jacob as was written on a Police Report filed in France. Adolf Hitler's date of birth is translated to "sometime after 1880." This is the only document of a middle name for Adolf Hitler.
He is the author of Mein Kampf and was an artist.
He married his secret mistress Eva Braun 40 hours before they committed suicide together. She ate cyanide. He ate cyanide and shot himself.

Personal
Also Known As: English (default): Jacob, Manitou, Wolff, Herr Wolff, Der Chef, Der Führer, Adi (when he was a child)
Appearance: 5 feet, 9 inches tall
brown hair, gray eyes
Ethnicity: Austrian
Religion: Catholic
Political Views: Nazi
Languages: Bavarian dialect of German

Top Surnames
Hitler, Schicklgruber, Pölzl, Braun, Lobjoie and Matzelsberger