Leandro Fernández de Moratín was a Spanish playwright and poet born on March 10, 1760, in Madrid. He is best known for his contributions to Spanish literature during the late 18th and early 19th centuries, particularly for his comedies that often critiqued social norms and customs. His most famous work, El sí de las niñas, highlights the struggles of women in a patriarchal society. Moratín was also a key figure in the Spanish Enlightenment, advocating for reason and education. He translated works from French literature, which helped introduce new ideas to Spain. His influence on Spanish theater is still recognized today, making him an important literary figure.