Quick answer
Lothar is a boy name with Germanic roots meaning "famous army".
Pronunciation: German /ˈloː.taʁ/.
Meaning and history
This name comes from the Germanic name Hlothar meaning "famous army", derived from the elements hlut "famous, loud" and heri "army". This was the name of medieval Frankish rulers of the Holy Roman Empire, Italy and France. It was also borne by four earlier Merovingian kings of the Franks, though their names are usually spelled as Chlothar.
Notes and context
Usage: german, germanic