Is there any evidence that kinslayers or guest-right-breakers are actually accursed?

Question

In the Song of Fire and Ice books, there are many references to the idea that nothing offends the gods more than killing a relative ("kin-slaying") or killing a guest of yours who has eaten bread and salt under your roof ("guest-right").

But, far from people who do these things suffering or being ill-fated, as claimed in legends like the Rat Cook, they seem to tend to do rather well - if anything, they seem almost blessed with good luck.

Here's every example I can think of:

Kinslaying:

• Tyrion (in the books) dodges two plagues which hit people around him, survives a shipwrecking and escapes slavery, execution and castration many times
• Ramsay goes from being an unwanted bastard to the legitimised heir of the whole of the North
• In the Knight of the Seven Kingdoms:

• Maekar is one of the few Targaryens to escape the Spring Sickness unscathed; as do his sons. He becomes king and his heirs continue the line of kings, despite being fourth in line
• Brynden Rivers becomes the most powerful man in the Kingdom, then lives for an unnatural amount of time influencing events across the kingdom from under a tree

Guest-right-breaking:

Walder Frey takes over his ex-boss's lands and becomes arguably the most powerful lord in the riverlands

Craster's mutineers don't last very long, but I seem to remember they lasted longer after taking over Craster's Keep than most of the non-mutineers did

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Are there any examples of such people actually suffering ill fate, bad luck or anything similar?

Answer 1

Accursed by whom? The books present several kinds of religions and superstitions, but it is always the characters themselves that decide each other's fate, even if it is not always intentional. In this case, the Freys are accursed from the point of view of just about everyone in Westeros, and this leads to very real repercussions.

Wyman Manderly is clear about how he and the northern lords allied with the Starks feel about Frey's breaking of guest rights:

My son Wendel came to the the Twins a guest. He ate Lord Walder's bread and salt, and hung his sword upon the wall to feast with friends. And they murdered him. Murdered, I say, and may the Freys choke upon their fables. I drink with Jared, jape with Symond, promise Rhaegar the hand of my own beloved granddaughter ... but never think that means I have forgotten. The north remembers, Lord Davos. The north remembers, and the mummer's farce is almost done. My son is home.

By the end of the 5th book this is already causing problems for the Freys, between Manderly and his allies stirring up trouble in Winterfell, and the Brotherhood without Banners killing Freys in the Riverlands.