D. Carlos could never have legitimized Maria Pia aka Hilda Toledano.
He could however have recognized her as his daughter, which there are no proofs that he had done.
It was an unfortunate coincidence that, from all the spanish churches that the republicans burnt (and there were quite a few) Hilda naturally choose one of those to say that that was precisely the one who kept her records
It is also interesting that, kmowinh that "her brother" D.Manuel had no children, she never approached him and tried to mingle with the family.
Mind you, D.Manuel died in 1932, BEFORE the spanish civil war, when the little church was still standing.
Hilda was the monarchic candidate that the opposition to Salazar - namely Mario Soares - presented to oppose to the miguelist candidate that was (mildly) sponsored by Salazar and, reluctantly, by D. Amélia.
As to Poidimani, he is a notorious crook who likes to pose as king in exile.
A couple of years ago, he "ordered" a genelogic tree of the Braganças where, of course, he appeared as the last of the lineage, "being" a descendant of Infante D.Afonso (D.Carlos' brother) and some obscure italian woman he met while in exile in Italy.
" think about it, what person decides one day that they are going pretend some dead kings child, its not something anyone can just think of, it has to be real. "
Have you never heard of the american "Grand-duchess" Anastasia ?
And her "nephew", Grand Duke Alexis of Anjou ?
Some people do all sorts of things if they think they can take profit ny "glueing" themselves to Royalty or rich people.
Hilda Toledano once stayed at the Lisbon Sheraton (yes, thiose leftists like to live in grand style and that was Lisbon's most luxurious hotel at the time) and when checking out she was presented the bill, she just said:
"I am the Duchess of Bragança. Send the bill to the House of Bragança".