Looked at the text yet again, and I think there’s a broader problem about the way that WOIAF describes Nymeria’s Conquest which makes the sequence of events really confusing:
Here’s my logic:
- We know that during Nymeria’s first marriage, the Daynes were allies of Mors Martell during his nine-year campaign against the Yronwoods. Sending Vorian Dayne to the Wall in this early phase wouldn’t make much sense.
- After Mors Martell’s death, which came before Nymeria’s eventual victory against the Yronwoods, Nymeria married twice, first to the Ullers and second to Ser Davos Dayne, who was the Sword of the Morning but not Lord of Starfall.
- Davos Dayne’s son with Nymeria was passed over as Nymeria’s heir – which would break the First Men and Andal rules of succession that the Daynes would have followed – in favor of her oldest daughter with Mors Martell, following the new Rhoynar customs. In dynastic politics terms, this is a huge blow to House Dayne, rendering the marriage alliance useless.
- Vorian Dayne, who was Lord of Starfall but not Sword of the Morning, was sent to the Wall at some point by Nymeria – why would the two come to conflict when their Houses had been allies in the war against the Yronwoods? Well, Nymeria’s decision to name her oldest daughter over her oldest son would be a clear casus belli.
My belief is that King Vorian Dayne was the older brother of Ser Davos, in one of those periods in which Dawn had been given to a non-ruler of Starfall (as was the case with Ser Arthur Dayne), that he allied with Nymeria against the Yronwoods, confirmed that alliance by marrying his highly symbolic younger brother to Nymeria, rebelled when his nephew was disinherited, was defeated, and was sent to the Wall as a King in part to smooth over ongoing tensions within the court at Starfall, as I can’t imagine it would have been easy for Ser Davos or his son during the rebellion.
The problem with your scenario is that, if Davos had succeeded Vorian, he would have been Lord Davos Dayne rather than Ser Davos Dayne when he married Nymeria.
“Years of war followed, as the Martells and their Rhoynar partners met and subdued one petty king after another. No fewer than six conquered kings were sent to the Wall in golden fetters by Nymeria and her prince, until only the greatest of their foes remained: Yorick Yronwood, the Bloodroyal, Fifth of His Name, Lord of Yronwood, Warden of the Stone Way, Knight of the Wells, King of Redmarch, King of the Greenbelt, and King of the Dornish.
For nine years Mors Martell and his allies (amongst them House Fowler of Skyreach, House Toland of Ghost Hill, House Dayne of Starfall, and House Uller of the Hellholt) struggled against Yronwood and his bannermen (the Jordaynes of the Tor, the Wyls of the Stone Way, together with the Blackmonts, the Qorgyles, and many more), in battles too numerous to mention. When Mors Martell fell to Yorick Yronwood’s sword in the Third Battle of the Boneway, Princess Nymeria assumed sole command of his armies. Two more years of battle were required, but in the end it was Nymeria that Yorick Yronwood bent the knee to, and Nymeria who ruled thereafter from Sunspear.”
The first paragraph strongly suggests that Nymeria sent the six kings to the Wall before Yorick Yronwood was defeated. This is a bit of a problem, because the Dorne chapter lists Yorick Yronwood as one of the six kings sent to the Wall, and he could hardly have fought Mors Martell for nine years and killed him in the Third Battle of the Boneway if he was up at the Wall.
Moreover, the second paragraph’s list of the various sides conflicts with the idea that the kings were all sent before Nymeria’s 11-year war against the Yronwoods. House Blackmont is described as bannermen of Yorick Yronwood, yet Benedict Blackmont was one of the six kings sent to the Wall by Nymeria; if Nymeria had already conquered the Blackmonts prior to the war, they wouldn’t have been counted as Yronwood bannermen. Likewise, Vorian Dayne and Garrison Fowler are listed as two of the six kings sent to the Wall. If they were defeated by Nymeria prior to the war against the Yronwoods, why would they be listed as mere “allies” of Mors Martell, rather than subjects and vassals?
Could some of the defeated kings have sworn fealty to the Yronwoods as revenge against the Martells?
Not if they were sent to the Wall before the war against the Yronwoods.
Pardon me. Couldn’t the Houses of the defeated kings have defected and sworn fealty to the Yronwoods as revenge against the Martells?
It’s possible, but it seems unlikely to me. Because it would require Nymeria to conquer them so thoroughly that their kings were captured, but then to have not taken any precautions (hostages, etc.) against them rising up again, repeatedly.