Nicholas-Ambroise Chatelin was a French painter and miniaturist born in 1722, primarily known for his contributions to portrait miniatures during the 18th century. Chatelin's work is characterized by its meticulous detail, vibrant colors, and the ability to capture the essence of his subjects with remarkable finesse. Despite the scarcity of comprehensive records about his life, Chatelin's surviving works provide insight into his artistic prowess and the stylistic trends of his time. Chatelin's career unfolded during a period when portrait miniatures were highly prized among the European aristocracy and bourgeoisie, serving both as personal mementos and as symbols of social status. He was adept in utilizing ivory as a medium for his miniatures, a practice that was both challenging and revered for its delicate nature and the luminosity it lent to the artwork. Chatelin's mastery over this medium contributed significantly to his reputation. Throughout his lifetime, Nicholas-Ambroise Chatelin participated in various exhibitions and received commendations for his art, contributing to the cultural milieu of 18th-century France. Despite the acclaim, detailed records of his patrons, specific commissions, or involvement in the artistic communities of his time remain sparse. Following his death in 1787, Chatelin's works continued to be appreciated by connoisseurs and collectors, albeit his name not being as widely recognized as some of his contemporaries. Today, his miniatures are considered valuable examples of 18th-century French art, reflecting the elegance and sophistication of the period.