This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

This is a treatise on chivalry and horsemanship, written in Portuguese by Duarte I, king of Portugal, in the 15th century. The book offers advice and guidance on how to be a good knight and a skilled horseman, drawing on the author's personal experience and expertise. It addresses practical topics such as training horses, managing stables, and equipping oneself for battle, as well as ethical issues such as loyalty, courage, and generosity. The book is a valuable source for the study of medieval Portuguese culture and the history of equestrianism. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.