Robett Glover

"There will be more fights to come; House Glover will stand behind House Stark as we have for a thousand years, and I will stand behind Jon Snow, the King in the North!"

- Lord Robett Glover renews House Glover's allegiance to House Stark and hails Jon Snow as King in the North.

Lord Robett Glover is the Lord of Deepwood Motte and head of House Glover after the death of his brother, Galbart Glover, during the War of the Five Kings. He is the third to declare Jon Snow the King in the North after apologizing to him for not fighting for House Stark during the Battle of the Bastards.

Background
Robett is the brother of Galbart Glover, the Lord of Deepwood Motte. He succeeded him after Galbart's death in the War of the Five Kings.

Season 6
Jon Snow, Sansa Stark, and Davos Seaworth secretly meet with Robett to try and gain his support against House Bolton. He refuses to help, as they have only secured the loyalty of House Mormont, and citing that Jon Snow has joined forces with wildlings, whereas the Boltons helped Robett take Deepwood Motte back from the Ironborn, who had captured it and terrorized Robett's family and subjects. He lambastes Robb Stark, to whom House Glover was sworn, for giving no such help (though in all irony, this was Robb's original intention, but he was persuaded otherwise by Roose Bolton) and "taking up with a foreign whore." Despite the protestations of Jon and Sansa, Robett refuses to declare for them, and sends them away empty-handed.

Robett, along with other Northern lords, travels to Winterfell following the defeat of the Boltons at the Battle of the Bastards, where he and two other lords, Wyman Manderly and Cley Cerwyn, are berated by Lady Lyanna Mormont for refusing to help the Stark cause. Robett is the second lord, after Lord Wyman, to declare Jon King in the North. He apologizes for not participating in the battle, and pledges his allegiance to House Stark and Jon Snow.

Season 7
Along with the rest of the lords of the North and the Vale, Glover meets with the King in the North to plan for the coming war against the White Walkers. When Jon states that all Northerners will be conscripted, Glover initially objects to the idea of women being trained for warfare but comes around to the idea after Lyanna Mormont explains her support.

He is later present when Jon convenes another meeting at Winterfell. There, Robett reads Samwell Tarly's letter regarding the vast amount of dragonglass and is informed of Daenerys Targaryen's letter regarding the fact that it would be wise if Jon would bend the knee. Despite the wishes of Robett and other noble lords, Jon still departs Winterfell, leaving Sansa in control of the North.

Quotes
"We've only just taken back this castle from the Ironborn. The Boltons helped us do it, and now you want me to fight against them? I could be skinned for even talking to you."

- Robett Glover to Jon Snow.

In the books
In A Song of Ice and Fire novels, Robett Glover is brother of Galbart Glover, the head of House Glover of Deepwood Motte. He is described as tall and haggard and has brown-grey hair.

Robett has two children, Gawen and Erena. There is no mentioning in the books that he has any grandchildren.

When Robb Stark calls his banners, both Robett and his brother Galbart ride out from Deepwood Motte, leaving it in the hands of Robett's wife, Sybelle. Later it is taken by Asha Greyjoy (named Yara Greyjoy in the show).

As result of the agreement reached between Vargo Hoat and Roose Bolton, Robett and Ser Aenys Frey lead a group of northern knights that Vargo brings into Harrenhal, under the pretense that they are captives taken by the Brave Companions. As part of the feint, the northerners are chained, in ragged clothes and many fake injuries. Ser Amory Lorch, left by Lord Tywin as castellan of Harrenhal, falls for the trick. Arya Stark, not realizing what is going on, organizes a successful liberation of the captives with the assistance of Jaqen H'ghar, Biter and Rorge.

After Roose takes over Harrenhall, he orders Robett to join up with Ser Helman Tallhart and march on Duskendale. They obey, unaware that Roose deliberately sends them into a trap: the joined forces of Randyll Tarly and the Mountain destroy the northmen troops. Ser Helman is killed, while Robett and Harrion Karstark (the last surviving son of Rickard Karstark) are taken captive.

Robb exchanges the captive Martyn Lannister (who was not killed by Rickard Karstark in the books) for Robett. Robett arrives in White Harbor after the prisoner exchange and tries to raise men in the city to retake Deepwood Motte from the ironborn. He is unsuccessful, however, because Lord Wyman Manderly has grown weary of war - secretly, because the Manderlys are feigning peace so they can later turn on the Boltons and Freys. As it turns out, Stannis Baratheon marches south and liberates Deepwood Motte, retaking it from the ironborn and freeing Robett's wife. However, their children Gawen and Erena are still in the hands of the Ironborn; being looked after by Asha's aunts at The Ten Towers in the Iron Islands. Robett himself remains at White Harbor but may have coordinated with his wife via messenger-raven. At Deepwood Motte itself, Robett's wife commands the remaining Glover forces to openly join Stannis's army, along with several hunters and trackers from their vassal Houses in the Wolfswood such as House Forrester.

Davos arrives at the White Harbor in attempt to gain the support of the Manderlys, but is thrown to jail. Days later, Robett appears at Davos's cell and takes him to a secret room, on the way updates him about the liberation of Deepwood Motte, and that the Boltons intend to hold Ramsay's wedding at Winterfell. He speaks disdainfully about Ramsay, describing him as "a beast in human skin". At the secret room, Lord Wyman and the mute ironborn Wex are. Robett tells Davos what they learned from Wex: the place where Rickon and Osha went. Lord Wyman says he is willing to support Stannis, but providing that Davos finds Rickon.

Unlike in the show, Robett remains loyal to the Starks throughout the books.

The TV version condensed events at Deepwood Motte so Stannis never liberated it, nor was Yara Greyjoy captured by Stannis there as she was in the books. Instead, Yara simply receives a letter at the beginning of Season 6 informing the Greyjoys that the Glovers managed to retake Deepwood Motte on their own initiative. This is not implausible given the situation in the novels: the ironborn are strong at sea but simply didn't have the manpower to hold lands and castles in the North during a lengthy occupation, and even the small local forces in the North left after the Red Wedding could wear down the ironborn through simple attrition.