A saint is someone who the Church has confirmed is in Heaven; someone who is blessed is only partly through this confirming process, for whom it is likely that they're in Heaven but not certain.
Blessed is one step from sainthood. A second miracle is needed to prove the person is actually in Heaven.
In the Catholic Church, a saint is someone who has been officially recognized for exceptional holiness and is believed to be in heaven. A blessed is someone who has been beatified, which is a step towards sainthood, but does not have the full recognition and veneration that a saint does.
"Blessed" is the standard spelling for the past tense and past participle of "bless," while "bless'ed" is an alternative, archaic spelling. Both forms are correct, but "blessed" is more commonly used in modern English.
They are the same person.
Diana is not yet canonized but only beatified. Thus her title is Blessed and not saint.
If you are referring to Blessed Miguel Pro, he has not been canonized yet and is not a patron saint.
No, Blessed Adeline was the niece of Saint Bernard and Saint Adelina was the grand daugher of William the Conqueror.
Blessed Margaret of Lorraine is not a patron saint.
Saint Joachim is the father of the Blessed Virgin Mary.
There is a Saint Costanzo and a Blessed Costanza.
Saints are always a soul, and a soul might not be a saint.
Yes
Society of the Sisters of Saint Ursula of the Blessed Virgin was created in 1606.