Henry VIII desperately sought a male heir because he feared the civil strife that might occur if any prolonged interregum succeeded his death.
Following Pardews departure for Crystal Palace last January and John Carvers near calamitous interregnum, Newcastle were extremely fortunate not to be relegated last May.
Not era, since it was less than three years interregnum at Balenciaga is officially over.
He was replaced in February after an interregnum by Helge Lund, who had been chief executive of the Norwegian state-controlled major, Statoil.
Monarchies have always understood the importance of avoiding interregnums: the king is dead, long live the king!