Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A letdown in the genre of historical fiction

This book had very little to do with the aforementioned painting and with Leonardo da Vinci in general, in which case I was let down because it turned out to be something I did not expect. Based on a true tale of Renaissance era power families in Italy, the characters seemed like mere ciphers who existed solely to report the goings on of the day. Essex seemingly couldn't decide between an historical work or historical fiction and, as a result, this book is neither. Given authors like Dunant and Gregory, historical fiction can be so much more in the hands of a gifted storyteller. This book was a disappointment through and through.