Game Of Thrones: 10 Lesser Known Fan Theories (That Might Actually Be True)

10. Lem Lemoncloak Was Rhaegar's Squire

Lem Lemoncloak, unfortunately, never made much of an impact on the TV show. He made a brief appearance in Season 6's The Broken Man, but was despatched by Sandor Clegane in the same episode. He has a bigger role in the books as an important member of the Brotherhood Without Banners, and his importance may run far deeper than that.

Rhaegar Targaryen - now confirmed, in the show at least, as Jon Snow's father - had a squire by the name of Richard Lonmouth, one of his closest companions (he's believed to be among those who were with Rhaegar when he 'kidnapped' Lyanna). Of these companions, though, it's Lonmouth's fate that is left unknown.

As broken down by ladygwynhyfvar, there is lots of supporting evidence within the text to suggest that Lem is actually Lonmouth. For starters, their colours are similar: The colours of House Lonmouth are predominantly black and yellow (with some red, too); Lem wears the cloak that gives his name, and also a black helm (and when Arya meets him, he's stained with blood).

It does, obviously, go beyond that superficial level though. When he meets the Ghost of High Heart, both she and he reference "kisses... lemons... bones." The lemon part is obvious, while Lonmouth was the Knight of Skulls and Kisses. There are also clear associations between both characters regarding the notion of choice. We see in the books Lem performing actions for the Brotherhood based on the choices of others, and the words of House Lonmouth are 'The Choice Is Yours'. There's also a line connecting him to the royal family:

"Lem, is that you? Still wearing the same ratty cloak, are you? I know why you never wash it, I do. You’re afraid all the piss will wash out and we’ll see you’re really a knight o’ the Kingsguard!"

We know what happened to Rhaegar's other close companions - Arthur Dayne and Oswell Whent died at the Tower of Joy; Miles Mooton was slain by Robert Baratheon at the Battle of the Bells; Lewyn Martell died at the Battle of the Trident - but no word is made of what happened to Richard Lonmouth.

Similarly, while we know - to varying degrees - the backstories of the other prominent Brotherhood Without Banners members, Lem seems to have appeared from out of nowhere.

The significance of all of this is that Lonmouth was present at the Tourney at Harrenhal, and along with Robert Baratheon endeavoured to discover the identity of the Knight of the Laughing Tree. That means he might know the identity of that person but, more so, could well have key knowledge regarding Rhaegar and Lyanna, putting him on a par with that other mysterious, knowledgable character, Howland Reed.