The Danes build a fortress , but finding no volunteers to man it , they burn it down themselves and leave the island .
King Valdemar II and archbishop Andreas Sunonis made a raid to Saaremaa island , Estonia .
King Valdemar II and archbishop Andreas Sunonis made a raid to Saaremaa island , Estonia .
Simplifica la oración: The Danes build a fortress , but finding no volunteers to man it , they burn it down themselves and leave the island . Producción: