Henry VI's reign (1422–1461 and 1470–1471) was marked by prolonged instability, beginning with his unprecedented dual coronation as King of England (1429) and France (1431) during infancy. His passive leadership and aversion to conflict exacerbated territorial losses in France, culminating in England retaining only Calais by 1453. His mental illness—a debilitating breakdown in 1453—left him incapacitated for over a year, triggering factional strife that escalated into the Wars of the Roses. Despite attempts at reconciliation, such as the symbolic "Love Day" procession, his reign became synonymous with dynastic collapse and Lancastrian defeat. Posthumously, he developed a popular cult as a "saint-king," credited with miracles and venerated until the Reformation