Definition
This entry seems to combine elements of Johann Eck (theologian) with a middle name. 'Johann Maier' by itself could refer to various people, but 'Johann Maier Eck' isn't a widely recognized historical figure as one single person. If intended to refer only to Johann Eck, he was known for debating Martin Luther. Since Maier is a common German surname, there could be other Johann Maiers but there is no known single historical person by the name Johann Maier Eck. Because there is no single known person of that name, I can't give a specific definition beyond its parts.