However, the dominant view represented by historians such as Anton Joachimsthaler,[3] Timothy Ryback, Ian Kershaw,[4] and Belgian journalist Jean-Paul Mulders,[5] is that Hitler's paternity of Loret is unlikely or impossible to prove.

According to the birth registry of his home town, Loret's father was an "unidentified German soldier" during World War I. Adolf Hitler had stayed in the localities of Seclin, Fournes-en-Weppes, Wavrin, and Ardooie during the years 1916 and 1917, and, according to eyewitnesses, he supposedly had a relationship with Charlotte.

On 22 May 1922 Charlotte married Clément Loret, a lithographer, who declared he would support his wife's illegitimate son and would allow him to bear his own last name.

After their deaths in the mid-1920s, his aunt, Alice Lobjoie, worked to have her nephew adopted by the family of the wealthy construction magnate Frizon from Saint Quentin.

[6] During World War II, Loret worked as chargé de mission with the French police in Saint-Quentin, Aisne.

[3] According to Maser's portrayal, a 28-year-old Hitler had met the 19-year-old Charlotte in the city of Lille, in the German-occupied part of France, while stationed there as a soldier.

She stayed first in Premont, allowed herself to fall into a sexual relationship with him, and followed him until autumn 1917 to, among other places, Seboncourt, Forunes, Wavrin and Noyelles-lès-Seclin in Northern France – and, in May, June and July 1917, also to Ardooie in Belgium.

Despite not being able to speak the same language, Hitler and Charlotte purportedly continued their relationship and frequently went on country walks and shared drinks at night.

Later, Charlotte would recall to her son that the soldier had a short temper and would often rant in German: When your father was around, which was very rarely, he liked to take me for walks in the countryside.

[3] Maser's questioning of Alice Lobjoie, Loret's aunt and Charlotte's sister, whom he had wanted to bring into play as "crown witness" for his claim, rendered, instead, a negative result.

Balthasar Brandmayer for example, in his 1932 memoir Two Dispatch-Runners, reported that Hitler had reacted in the most violent terms against the intent of his regiment-mates to get involved with French women and had reproached them for having "no German sense of honour".

[15] In 2008, the Belgian journalist Jean-Paul Mulders travelled to Germany, Austria, France and the United States to collect DNA of the last living relatives of Hitler.

[16] The article also stated that official German Army paperwork proves officers brought envelopes of cash to Lobjoie during World War II occupation, and described a suggestion by the family's lawyer that they may be able to claim royalties from Hitler's Mein Kampf.

Loret spoke of a Rothschild family conspiracy[19] and stated his intention to undergo a DNA test to determine if he was Hitler's grandson.