Alonso Perez de Guzman, called Guzman el Bueno (Guzman the Good) (1256-1309). Leonese military and nobleman, founder of the house of Medina Sidonia. Guzman el Bueno throwing his dagger in the siege of Tarifa so that they would kill his kidnapped son before giving the place to the enemy. Illustration by Urrabieta. Engraving by Cibera. Historia General de Espana by Father Mariana. Madrid, 1852. (Photo by: Prisma/Universal Images Group via Getty Images)