Books like The Six Wives of Henry VIII
Alison Weir
The Six Wives of Henry VIII is 643 pages, about 11 hours 47 minutes at 250 words a minute.
12 books to read next
How long each takes
Six Wives 15.6 h 
The Life and Death of Anne Boleyn 8.4 h 
Sister Queens 7.9 h 
Anne Boleyn 7.0 h 
Elizabeth 7.3 h 
The Housekeeper's Diary 4.5 h 
Elizabeth and Mary 9.3 h The British Chronicles 12.3 h 
She-Wolves 8.8 h 
Elizabeth's Women 8.5 h 
Mary Tudor 8.3 h 
Queen Mary, 1867-1953 12.3 h Bar height shows length. Estimated at 250 words a minute.