Ardo (or Ardonus, possibly short for Ardabastus; died 720/721) is the last attested king of the Visigoths, reigning from 713 or 714 until his death in 720 or 721. The Visigothic Kingdom was already severely reduced in power and area at the time he succeeded Achila II, and his dominions probably did not extend beyond Septimania and present-day Catalonia, due to the Arab conquests of the previous three years. Ardo is only recorded in one Visigothic regnal list as reigning for seven years.
https://en.wikipedia.org/wiki/Ardo