Question: Who is the father-in-law of Louise Of Mecklenburg-Güstrow?
Sentence (from "Christine of Mecklenburg-Güstrow"): From her ten older and younger siblings, eight survived to adulthood: Marie( by marriage Duchess of Mecklenburg- Strelitz), Magdalene, Sophie( by marriage Duchess of Württemberg- Oels), Charles, Hereditary Prince of Mecklenburg- Güstrow, Hedwig( by marriage Duchess of Saxe- Merseburg- Zörbig), Louise( by marriage Queen of Denmark and Norway), Elisabeth( by marriage Duchess of Saxe- Merseburg- Spremberg) and Augusta.
Relevant evidence: No