However, according to Alireza Shapour Shahbazi, it is unlikely that Shapur was crowned as king while still in his mother's womb, since the nobles could not have known of his sex at that time.
Imidlertid er det ifølge Alireza Shapour Shahbazi usandsynligt, at Shapur blev kronet som konge, mens han stadig var i moderens livmoder, da de adelige ikke kunne have kendt barnets køn på det tidspunkt.