The name and its' derivatives are historically attached to the people identified as Moors, a Phoenician race that originated in Palestine (Cannan) before they arrived in ancient Lybia (Northwest Africa, i.e. Morocco, Maurantinia &c).Source: Procopius History Of The WarsThe Vandalic Wars occurred during the rulership of Roman Emperor Justinian lived 482 - 565, ruled 527 - 565, obviously predating Islam and the later Al-Andalusian era. Masuna, a Moorish ruler, left the following inscription dated 508 AD Rex gentium Maurorum et Romanorum, the "King of the Roman and Moorish peoples".
The name was given to people North African / Arabic origins who resided in Europe (Moors). The name comes from the demonym of Mauritania (modern day Morocco). It originally applied to European residents who were Arabic, then it was broadened to African and Arabic Europeans, or just people with darker skin.
― Anonymous User 10/20/2015
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The German usage of this name is usually Moritz (as in Max und Moritz) although there was a prominent Nazi (Emil) and member of the SS, who's last name was Maurice. Himmler suspected him of being part Jewish.
Source: "Vornamen in der Schweiz. Prénoms en Suisse. I nomi in Svizzera. Prenoms in Svizra" (1993) published by the Association of Swiss registrars
https://sursassiala.ch/2015/01/15/familienforschung/
https://nossaistorgia.ch/entries/A39DB2bJDNY
https://nossaistorgia.ch/entries/rmyDr26D8RK
https://www.portraitarchiv.ch/portrait?page=72