landgrave
/ˈlændˌɡreɪv/Definitions
1. noun
A nobleman of the highest rank in certain German states, ranking below a prince.
“The landgrave played a key role in the local politics of the region.”
2. noun
A title of nobility in Germany, equivalent to a count or a duke, but ranking below a prince.
“The landgrave’s estate was one of the largest in the country.”