This chapter focuses on the medieval concept of sex. The Marvels of the East is a medieval text about fantastical monster tales which also depicts a hermaphrodite figure. The text implies the importance of sex and gender variance in the definitional limits of humanity. In the medieval period, the concepts of intersex and transgender exist simultaneously without necessarily conflating them. Examples from the Middle Ages can help situate modern cartographies of gender and space within a much broader chronological framework. However, works about real people and imaginative settings mean it cannot be referred to as linear history pertaining to sex or gender variance.