Landsberg started as a court referendary in Ostrów and Poznań, then he was an attorney in Magdeburg. There, in 1912, he became an MP of the SPD, i.e. the Socialist Party of Germany. A few years later, Private MP Landsberg became a member of the party board.

And here he showed how progressive he was. His postulates would be good even today, although more than a hundred years have passed since then. Well, see, he opposed any radicalism, he wanted to solve problems by parliamentary methods. He tried to democratize the ossified German law and introduce proportional electoral law. Last but not least, he was a staunch supporter of women's right to vote, which was achieved immediately after the war in 1918.

The end of the war was a breakthrough for Landsberg. After the emperor's abdication, he took over power with the six-person so-called Council of People's Plenipotentiaries. Not bad for a modest referendary from Rybnik, right? And this is not the end of his great career. A year later, in the first democratically elected government, Otto Landsberg became Minister of Justice.

He was involved in great politics almost until the beginning of World War II. Unfortunately, for his open opposition to the Nazis, he was deprived of his citizenship and had to flee to the Netherlands. Thus, he never returned to a country that became a contradiction of all his ideals.