"The Princess and the Queen is a novella consisting of material written  by George R.R. Martin for The World of Ice and Fire but cut when it ran  drastically over-length. Rather than lose the material, Martin decided  to publish it in his anthology Dangerous Women. It replaces the fourth  Dunk and Egg short story, The She-Wolves, which will instead be  published later in a different venue. The Dance of Dragons began in  129 AL, one hundred and sixty-nine years before the events of A Game of  Thrones. It was the conflict that saw most of the lesser branches of  House Targaryen and almost all of its dragons destroyed. The Princess and the Queen is a narrative history, taking place at the outbreak of the Dance of Dragons."    And here is a taste from the version appearing in the Dangerous Women anthology.