Marianne Fritz (1948–2007) was an Austrian novelist. Her first book, The Weight of Things, marked the beginning of an ambitious cycle of novels with the overarching title of Festung, or "The Fortress," comprising Das Kind der Gewalt und die Sterne der Romani, Dessen Sprache du nicht verstehst, and the gargantuan Naturgemäß, the third volume of which she was preparing at the time of her death.