Question

Martin Luther belongs to which country and what is the importance of Pope Gregory xiii​

Answer 1

First, he is significant for having increased the secular power of the papacy. Gregory took temporal power over an area that came to be known as the Papal States. He did this as a way to help keep Rome safe from invasions of the time, but it ended up establishing the Church as a temporal power.

Answer 2

He belongs to german

Pope-

He is best known for commissioning and being the namesake for the Gregorian calendar, which remains the internationally accepted civil calendar to this day

* not my answer

*source(wikipedia)