October 4 is observed as the Feast of Saint Francis of Assisi, known for his love of nature, humility, and compassion. The day is significant for those who bear the name in Belgium.
- François – The French form of Francis, from the Late Latin Franciscus, meaning Frenchman or free man. It honors Saint Francis of Assisi, the founder of the Franciscan Order and a symbol of peace and simplicity.
- Franciscus – The Latin form of Francis, used in ecclesiastical contexts. It carries the same meaning and is often found in religious and historical records.