Four Queens: the Provencal sisters who ruled Europe

Here is publisher's blurb about the Four Queens, by Nancy Goldstone. Yes, this is non-fiction work set during the 13th century, but it was well written and fast paced. It shatters the myth that women were helpless pawns during this era and illustrates the qualities still found today in families, such as the love of parents, duty, sibling rivalry, independence and birth order.

Publisher's blurb:
Four Queens is a rich pageant of glamour, intrigue, and feminine power at a time when women were thought to have played limited roles. In thirteenth-century Europe, four sisters from a single family-Marguerite, Eleanor, Sanchia, and Beatrice of Provence-rose from obscurity to become the queens of, respectively, France, England, Germany, and Sicily. All four were beautiful, cultured, and ambitious, and their stories offer a window into the era of chivalry, crusades, poetry, knights, and monarchs that will appeal to fans of Alison Weir and Antonia Fraser."