Among the more prominent characteristics of Rembrandt's work are his use of chiaroscuro, the theatrical employment of light and shadow derived from Caravaggio, or, more likely, from the Dutch Caravaggisti, but adapted for very personal means. Also notable are his dramatic and lively presentation of subjects, devoid of the rigid formality that his contemporaries often displayed, and a deeply felt compassion for mankind, irrespective of wealth and age. His immediate family—his wife Saskia, his son Titus and his common-law wife Hendrickje—often figured prominently in his paintings, many of which had mythical, biblical or historical themes.