Answer
Studied under Hals, Judith Leyster received formal art training. Despite the lack of documentation regarding her apprenticeship, art historians widely believe that she studied under Frans Hals, a renowned Dutch Golden Age painter known for his lively brushwork and mastery of portraiture. Leyster's artistic style, characterized by its bold brushstrokes and dynamic compositions, bears a striking resemblance to Hals's work, suggesting that she may have been his pupil.