Which ruler’s name gave the English word “mausoleum” its origin?

The English word “mausoleum” comes from the name Mausolus.

Mausolus was the ruler of Caria, a region in southwestern Anatolia, during the fourth century BC. After his death, his wife and successor Artemisia II commissioned a monumental tomb at Halicarnassus. The building became known in Greek as the Mausoleion, meaning the monument associated with Mausolus, and that name eventually developed into the general word “mausoleum.”

The tomb was famous for its combination of architecture, sculpture, and scale. It stood on a high platform and incorporated columns, statues, and a pyramid-like roof. Ancient writers regarded it as one of the Seven Wonders, and its artistic influence continued long after the original structure was damaged.

“Mausoleum” now means a large or important burial building, not only the tomb at Halicarnassus. The specific ancient monument is usually called the Mausoleum at Halicarnassus to distinguish it from later tombs.