8300
His parents were Adolf I , Duke of Schleswig-Holstein-Gottorp and Christine , Landgravine of Hesse-Cassel .
 person: Adolf I , Duke of Schleswig-Holstein-Gottorp; person: Christine , Landgravine of Hesse-Cassel
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Adolf I , Duke of Schleswig-Holstein-Gottorp; person: Christine , Landgravine of Hesse-Cassel