Louis Ferdinand was born in Potsdam as the third in succession to the throne of the German Empire, after his father, German Crown Prince William and elder brother Prince Wilhelm of Prussia.The monarchy was abolished after Germany’s revolution in 1918. When Louis Ferdinand’s older brother Prince Wilhelm renounced his succession rights to marry a member of the untitled nobility in 1933 (he was …
https://en.wikipedia.org/wiki/Louis_Ferdinand%2C_Prince_of_Prussia

