Rudolf was born in S.1154, living in Lamarre Province.
He was a nobleman on paper, a position he had earned for his efforts in the Imperial Army of Erebonia as the commander of the 13rd Armored Division. However, his position within the nobility was the lowest rank and he and his family were treated as commoners.
Within the army, Rudolf assumed an anti-commoner stance and closely followed the big noblemen.
His wife bore him a son, Lechter, but she eventually decided to divorce him.
Hundred Days War
- Main article: Hundred Days War
In S.1192, at the age of 38, he told his son Lechter had he would be out for a while. He promised him that if his mission were to succeed, they would move to a bigger house and possess greater territory.
In April S.1192, following the massacre in Hamel, Erebonia declared war on Liberl. Charging into Liberl as the commander of the 13th Armored Division. After a swift, initial invasion, Liberl's counter-offensive proved to be highly efficient. After three months of warfare, Erebonia suddenly signed a cease-fire agreement.
- Main article: Tragedy of Hamel
After his return to Erebonia, Rudolf was forced to reap what he had sowed. In an secret court-martial, he was charged with the employment of jaeger dropouts to carry out the massacre of Hamel. That was the conclusion of Brigadier General Giliath Osborne, who was tasked with the investigation on authority of Emperor Eugent III and had confidential negotiations with Alicia von Auslese, the queen of Liberl.
- In Trails of Cold Steel III, Rudolf's grave is one of the four named graves at Himmel Cemetary, the others being Crow Armbrust, Elsa Regnitz and Julian Braun (fiancée of Liza from Recette Bakery & Cafe in Leeves).