Naruhito of Japan (徳仁, b. 1960) married Yoshie Kashiwabara (柏原芳恵, b.1965) on 4th of May, 1992
Prince Tomohito (智仁), b. 3rd of March, 1993
Princess Yukiko (有希子), b. 17th of October, 1996
Prince Musashi (武蔵), b. 31st of May, 1999
Alongside the enormous amount of money that would be spent in restoring such ancient monuments, it would be a longer time span for such projects; add to that was the consistent presence of watchdogs because of, well, corruption tendencies.
I don't think so; instead, they would possibly allow some Aragonese and Navarrese to join their Castilian counterparts in the Americas, although the latter would be more inclined than the former for geographical reasons.