Princesses Victoria of Sweden, Elisabeth of Belgium, Catharina-Amalia of the Netherlands, Ingrid Alexandra of Norway and Leonor of Spain all reign at the same time.

Created by Bruno Parga on 2019-10-26; known on 2101-01-02

• Bruno Parga estimated 50% on 2019-10-26
• Bruno Parga said “To clarify: this prediction is true iff these five princesses are Queens regnant of their respective kingdoms at any point in time. Princess Victoria is 42 and royals don’t seem big on transhumanism, so the end date seems adequate.” on 2019-10-26
• pranomostro estimated 30% on 2019-10-28
• Baeboo estimated 3% on 2019-10-28
• Tanya_21@hotmail.com estimated 18% on 2019-11-18
• Bruno Parga changed the deadline from “on 2101-01-01” and changed their prediction from “Princesses Victoria of Sweden, Elisabeth of Belgium, Catharina-Amalia of the Netherlands, Ingrid Victoria of Norway and Leonor of Spain all reign at the same time.” on 2019-12-25
• Bruno Parga said “I just noticed I had written princess Ingrid Alexandra’s name wrong. I also have another stipulation: secession of parts of these kingdoms does not invalidate the prediction.” on 2019-12-25
• Bruno Parga said “On secession, I am unclear on what should be marked if a state (like Belgium) completely dissolves – which is not impossible.” on 2019-12-25
• Baeboo estimated 8% on 2019-12-25
• Baeboo estimated 4% on 2020-03-21
• Bruno Parga said “Lines: Carl XVI Gustaf (born 1946) – Victoria (born in 1977) // Filip (1960) – Elisabeth (2001) // Willem-Alexander (1967) – Catharina-Amalia (2003) // Harald V (1937) – Haakon (1973) – Ingrid Alexandra (2004) // Felipe VI (1968) – Leonor (2005)” on 2020-09-13
• Bruno Parga estimated 47% on 2021-01-01