The Book of Margery Kempe by Margery Kempe is an autobiography of a female from medieval period. This book is meaningful in a way that Kempe claims her identity in the medieval patriarchal society through a writing process of her mystical experience. The book of Margery Kempe examines the subject of female identity development in medieval period. The “I” in the genre of autobiography is inevitably fictitious because it goes through reconstruction of the self. Especially for Kempe, her identity development is different from that of males. This is partially because she is from medieval period, but also because her book is still in the process of developing identity. For instance, the events described in the book are not in order, and the repetitive narration shows her identity is not fully developed. Kempe consists of eccentric and subversive identity and seeks negotiation with the predominant male discourses in her autobiography.