Inspired by this thread, but also somewhat different in view, John III of Portugal had a fair few children, mainly sons who all died young and apart from Prince Joao Manuel, without issue.
My query is this, say one or more of John III's other children had survived into adulthood what might this have changed?
Such children including:
Prince Manuel (b 1531: d. 1537) Prince Filipe (b 1533: d 1539) and Infante Antonio (b. 1539: d.1540)
Obviously if either Manuel or Filipe survived they and no Joao Manuel would be their father's heir and likely would marry Joan of Spain in his place. However, if they both died as otl, and Infante Antonio survived, who might he marry and what consequences could this have for things?
Alternatively, what happens if all three of them survive?
My query is this, say one or more of John III's other children had survived into adulthood what might this have changed?
Such children including:
Prince Manuel (b 1531: d. 1537) Prince Filipe (b 1533: d 1539) and Infante Antonio (b. 1539: d.1540)
Obviously if either Manuel or Filipe survived they and no Joao Manuel would be their father's heir and likely would marry Joan of Spain in his place. However, if they both died as otl, and Infante Antonio survived, who might he marry and what consequences could this have for things?
Alternatively, what happens if all three of them survive?