My grandmother Julianna Bein (nee Klein) was born in Mateszalka, Hungary which apparently had several Klein Families. She was one of eight siblings and I am not aware of any adoptions of a Zalli. The eldest brother was Mano, also a sister Zelma. Unfortunately I cannot recall the name of Julianna's father, but I do know that they were Innkeepers.
Julianna married David Bein who was from the Transylvanian regions of Hungary.
Julie Bein Stainmagen