Why did Louis IV quarrel with his brother Rudolf over Bavaria?

The primary cause of the quarrel between Louis IV and his brother Rudolf was the distribution of power and territory within their family lands. Following the death of their father in 1294, Rudolf acted as guardian to the young Louis and withheld from him the share of the government that was legally his.1

This rivalry intensified over time, fueled by differing political allegiances and the struggle for control over Bavaria. The tension persisted as the brothers took opposing sides in broader imperial politics, with Rudolf eventually voting against Louis during the 1314 imperial election. Louis ultimately used his military successes to wrest exclusive control of Upper Bavaria and the Rhenish Palatinate from his brother. The conflict between the two branches of the house of Wittelsbach was not fully resolved until the Compact of Pavia in 1329, which formally divided their territories.12