Even before the series has begun, House of the Dragon is making several changes from the book. The prequel series begins approximately 200 years before Game of Thrones’ timeline, which will depict the events surrounding the Dance of the Dragons, House Targaryen’s monumental civil war. Following the death of King Viserys I Targaryen (Paddy Considine), the realm will be split between the “greens” and “blacks,” with the former supporting the claim of Viserys’ eldest son Aegon II Targaryen and the latter upholding the ascension of Viserys’ eldest child and declared heir Rhaenyra Targaryen (Emma D'Arcy).
House of the Dragon is based on author George R.R. Martin’s book Fire & Blood, a historical account of House Targaryen’s family line and reign in Westeros. As a largely informational book compared to a narrative drive of Game of Thrones, House of the Dragon has a major advantage in terms of how it adapts Fire & Blood’s story. Many of Fire & Blood’s most dramatic plot points are subject to rumor and interpretation, with the book giving no clear confirmation of whether the sources can be trusted as completely accurate. On the other hand, Game of Thrones’ books were meant to be interpreted as written, as the narrative details and twists have great importance on the characters’ storylines. This is where HBO’s Game of Thrones created problems with book readers, as the series surpassed Martin’s A Song of Ice and Fire around season 4.
Related: House Of The Dragon's Timeline Is Earlier Than We Thought (& That's Good)
The changes made by House of the Dragon won’t be quite as dramatic as Game of Thrones considering the less concrete nature of Fire & Blood’s history, but which side of the rumors the series chooses to make fact will be
Read more on screenrant.com