|This article is about the princess of Temeria. For other characters with the same name, see Adda.|
Adda and her brother were very close as children and began an incestuous relationship that resulted in a pregnancy. It caused a scandal, and worse, Foltest began expressing a wish to wed his own sister. That would have offended Vizimir II of Redania, who had hoped for his own daughter to marry Foltest. Adda, however, managed to persuade her brother from his wedding plans. This child she carried was cursed (presumably either by Ostrit, who fell in love with Adda, or by their mother, who was furious about the incestuous union between her son and daughter) and both mother and child died just after the birth. Foltest ordered that the two be buried in the royal vault beneath his palace in Vizima.
Seven years later, their daughter came back to life - but as a striga. The curse was eventually lifted by the witcher Geralt of Rivia after another seven years, and the young princess was named Adda, after her mother.
- She's mentioned a couple times in the comics when the story of the striga is re-told.
- In The Witcher, the game suggests that it was Ostrit who cast the curse, as evidenced by his journal.