Her murder by her husband, Fernando Rodríguez de Castro, earned her the sobriquet Stephanie the Unfortunate (Estefanía la Desdichada).
[1][2] In 1157, Stephanie's father died while returning from an expedition and his kingdoms were partitioned between her legitimate half-brothers, Sancho III of Castile and Fernando II of León.
Ferdinand would name him governor, at different times, of Cuéllar, Dueñas, Valladolid, Toro and Asturias, and he eventually became Ferdidand's mayordomo mayor.
Mi esposa Estefanía, que está en gloria, fue del Séptimo Alfonso hija querida; desde hoy sabréis, al escuchar su historia, que hay desgracias sin fin en nuestra vida.
Yo la maté celoso; y si, remiso, no me maté también la noche aquella, fue por matar después, si era preciso, a todo el que, cual yo, dudase de ella.
My wife Estefanía, who is in glory, / was of Alfonso VII a dear daughter; / after today you will know, upon listening to this story, / that there are disgraces without end in our life.