Factual error: Harry et al. are captured by Death Eaters in March (it's mentioned part way through chapter 22 that Ron was unable to find Potterwatch on the radio until one night in March; they are captured shortly after the program ends). Greyback and the other Snatchers take Harry and his friends to Malfoy Manor, and Narcissa states that, if this is indeed Harry Potter, her son, Draco, will recognize him. She says he is home on Easter break. However, this is 1998 (Harry turned 17 near the beginning of the book, which would've made it 1997, and this was the following March), and Easter was April 12th that year. Draco would still be at school.
Trivia: Hermione's middle name appears in Dumbledore's will as "Jean." According to J.K. Rowling, her middle name was supposed to be "Jane," but in a subsequent interview, Rowling commented that she changed it because she did not want Hermione to share her middle name with Dolores Umbridge.Cubs Fan
Trivia: J. K. Rowling considered two alternate titles for this book: "Harry Potter and the Elder Wand," and "Harry Potter and the Peverell Quest."
Trivia: Because the difficulty of translating "Deathly Hallows" to other languages, JK Rowling created an alternate title for the translations: "Harry Potter and the Relics of Death".
Question: In Godric's Hollow, it shows James and Lily's date of death to be in 1981, which would mean these events are taking place in 1997 when Harry would be 17 and the original Harry Potter book would be set around 1991. Is this a mistake or deliberate on JK Rowling's part?