He was born Regnier Gemma and only adopted the name Frisius when he later became a scholar for, like many scholars from his country, he adopted a Latin version of his name.
Siya ay ipinanganak Regnier Perla at lamang pinagtibay ang pangalan Frisius mamaya kapag siya ay naging isang iskolar para sa, tulad ng maraming mga iskolar mula sa kanyang bansa, siya pinagtibay ng isang Latin na bersyon ng kanyang pangalan.