Another interesting view deals with gaps in the same generation.
D.Pedro IV/I --- D.Maria II --- D.Pedro V (1837-1861)
D.Miguel I --- D.Miguel (II) --- D.Maria Adelaide (1912-2012)
This 2 great-grand-children of King D.João VI were born with a difference of 75 years and died with a difference of 151 years !!!
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