"Kaarle and Sigmund I: Protestant or Catholic? A historical-romantic narrative" is a fascinating book by the Swedish writer Louise Sternström. This book has all the ingredients of a successful saga: historical events, political intrigue, love and devotion. Through the prism of the lives of two great kings - Kaarle and Duke Sigmund I, the author reveals the deep religious and political contradictions of that time. Readers will feel themselves in the heart of events and experience incredible adventures together with the main characters. This book is an ideal choice for those who appreciate the combination of history, love and adventure in one literary masterpiece.