Kertomuksia Suomen historiasta III / Eerikki XIV ja Juhana III

The narrative recounts dynastic and military history centered on a royal duke who is granted a Finnish duchy, consolidates authority in Turku and coastal provinces, and pursues ventures in Livonia amid regional warfare. It depicts mounting tensions and open conflict with his royal brother, episodes of battles and imprisonment, diplomatic maneuvering involving neighboring powers, and military campaigns led by notable commanders. The account continues through the duke's later accession to the crown, further foreign campaigns, internal factional struggles, and questions of liturgy and court life, presented as episodic chapters blending political, military, and personal developments.