The Lady Simpleton(La dama boba) is a 1613 comedy by the Spanish playwright Lope de Vega. It is one of the earliest examples of the «comedia palatina» subgenre.

A very fast and funny comedy about a pair of sisters in love with the same man, although the marriage arranged for the younger sister with another nobleman throws the house into chaos. The ‘foolish lady’ is Finea; her older sister Nise is as educated as her sister is silly. However, through the power of love, Finea gains a new kind of intelligence.