

"The King was expected to marry his sister."
In today's episode, I will dive into the world of royal inbreeding and incest in the middle ages and in the game Crusader Kings III.
Sources mentioned in the episode
“How Did Consanguinity Work in Medieval Marriages?” https://www.thoughtco.com/consanguinity-and-medieval-marriages-3529573
“Family (Relation) - CK3 Wiki.” Accessed August 16, 2021. https://ck3.paradoxwikis.com/Family_(relation)#Incest.
“Royal Incest and Inclusive Fitness.” by Pierre L Van Den Berghe, Pierre L and Gene M. Mesher
Difference between Wikis and Wikipedia
Full Bibliography
Archibald, Elizabeth. Incest and the Medieval Imagination. 1st edition. Oxford ; New York: Oxford University Press, 2001.
B. A., Mundelein College, and Meadville/Lombard Theological School M. Div. “How Did Consanguinity Work in Medieval Marriages?” ThoughtCo. Accessed August 16, 2021. https://www.thoughtco.com/consanguinity-and-medieval-marriages-3529573.
“Family (Relation) - CK3 Wiki.” Accessed August 16, 2021. https://ck3.paradoxwikis.com/Family_(relation)#Incest.
Van Den Berghe, Pierre L., and Gene M. Mesher. “Royal Incest and Inclusive Fitness.” American Ethnologist 7, no. 2 (1980): 300–317.
Fascinating subject! Interesting that this is part of a video game. Information on the Incas was new to me.