What might the results of a surviving eldest son, Prince Joseph, of Queen Maria I and King Pedro III of Portugal, be? His wife had already suffered two miscarriages in 1781 and 1786 (the second one most likely due to her being nearly forty at the time). If he were to survive what would Portugal's future look like?
Thoughts
NOTE: For the interests of this thread, please disregard the effects of the so-called 'Curse of the House of Braganca'.