Horváti joined the opposition to the underage Queen Mary and her mother, Louis' widow Elizabeth of Bosnia, who ruled in her name as regent.
After Charles' death, John and Ladislaus, along with other revolting nobles from Croatia, were granted shelter in Zagreb by Paul.
Elizabeth was strangled on the orders of the bishop's uncle, while Mary was eventually released by her husband, Sigismund of Luxembourg, who had recently been crowned king of Hungary.
However, in 1394, after Tvrtko's death, John Horvat was captured and executed on the orders of Queen Mary and King Sigismund.
What happened to Paul is unknown; he may have been executed together with his brother in August 1394, but he may have also fled to Apulia and served as counselor to Charles' son and successor, King Ladislaus of Naples.