NIGHTBRINGER | The Arthurian Encyclopedia

Lantris

Alcardo

Tristan’s squire, whose name was changed from Alcardo when Tristan knighted him. He was Isolde’s cousin.

He accompanied Tristan on his adventures in Logres. He was slain when King Mark of Cornwall besieged the castle of Joyous Guard to reclaim Isolde from Tristan, and he was trying to rescue his sister from King Mark.


Source
La Tavola Ritonda | 1325–1350