landgrave

詳細解釋：

land.grave

n.（名詞）
A man in medieval Germany who had jurisdiction over a particular territory.
伯爵領主：在中世紀的德國對某個特定地區有領土管轄權的人
Used as the title for such a nobleman.
領主爵：這樣的貴族所擁有的頭銜

來源：
From Middle Low German
源自 中古低地德文
lant [land] * see lendh-
lant [土地] *參見 lendh-
grave [count]
grave [伯爵]