Ladislaus IV of Hungary, also known as Ladislaus the Cuman, was the King of Hungary from 1272 to 1290. The period was marked by internal strife and conflicts. While he faced opposition from various factions, specific details about "Bachaler Olaszkai" are not well-documented in prominent historical texts or widely available resources.

It appears that "Bachaler Olaszkai" might refer to a lesser-known individual or figure associated with the region or era, potentially involved in the complexities surrounding Ladislaus IV's reign, which included numerous instances of conflict, betrayal, and political intrigue.

To further explore this topic, you might want to check specialized historical texts about Hungarian medieval history, research papers, or archives that focus on the nobility and political figures of 13th-century Hungary. Please let me know if there's anything else you'd like to explore or have access to!