Martyn and Willem are Kevan's sons

Why does this and Willem's page say they're Kevan's sons? This is nowhere in the show. The only information we have from the show is that they're Tywin's "father's brother's great-grandsons". This disqualifies them immediately from being Kevan's sons. 11:15, June 16, 2013 (UTC)

Robb was being sarcastic to drive his point home to Edmure. His point being: Tywin wouldn't barter for the release of his first-born son (and favourite child) he won't do so for other, more distant members of his family. They are later referred to as Tywin's nephews.--The-Boy 11:25, June 16, 2013 (UTC)
What basis do we have for assuming he's being sarcastic? The mere fact Edmure called them Tywin's nephews doesn't prove much - it is quite common for someone to refer to the child of their cousin as a niece or nephew, which is right in line with Robb's comment. If Martyn and Willem were noted on the HBO Viewer's Guide for Season 3 as being Kevan's children, it'd be settled (or if we see Kevan again and he says so), but calling them Kevan's kids is basically complete speculation at this point. 11:34, June 16, 2013 (UTC)
I just came on here to see if anybody else brought this up and if not start a discussion myself as it's been bothering me too. Is there any corroborating evidence that they were in fact Kevan's sons apart from Edmure calling them "Tywin's nephews" after Robb called them Tywin's "father's brother's great-grandson"? Shaneymike (talk) 20:31, August 4, 2015 (UTC)

Better photo

We need a better photo of Martyn than the current one, it's too high-contrast and bright. But I can't find a better screencap.--The Dragon Demands (talk) 19:17, August 19, 2013 (UTC)