One of two or more rulers or governors who share power equally and rule together.
From 'co-' (together) + 'regent' (from Latin 'regens' ruling, one who rules). The term became common in medieval and early modern European monarchy.
When a king died leaving a child heir, a coregent would often be appointed to rule alongside the young monarch—this protected the kingdom from chaos while teaching the child how to rule, and it's why you see so many 'Lord Protectors' and 'co-rulers' in history.
Historically, 'regent' and 'corregent' referenced male rulers; female counterparts often received marked forms ('queen regent' vs. 'regent').
Use 'coregent' neutrally for any actor; avoid gendered qualifiers.
["coruler","coadministrator"]
Historical corregents included women; restore their titles using unmarked 'coregent' to parallel their male contemporaries.
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