Conversation so far:
What did the philosopher Madvacharya believe?
Madhva studied the Upanishads and the Advaita literature, but had frequent disagreements with his guru.
Why did Madhvacharya oppose his guru?
Madhva was unconvinced by its nondualism philosophy of oneness of human soul and god.
Did Madhvacharya have any issues with other gurus, besides his first teacher?
Madhvacharya was a fierce critic of competing Vedanta schools.
Who did the philosopher Madvacharya agree with?
God Vishnu alone is independent, all other gods and beings are dependent on Him, according to both Madhvacharya and Ramanuja.

Question: What else can you tell me about Madvacharya?
Self-contained rewrite: What else can you tell me about the philosopher Madvacharya besides agreeing with Ramanuja?