Sybelle Glover

"Yes. My family served House Stark for centuries. We wept when we heard of your father's death. When my brother was lord of this castle, he answered Robb's call and hailed him "King in the North"! And where was "King" Robb when the ironborn attacked this castle? When they threw my wife and children in prison and brutalized and killed our subjects? Taking up with a foreign whore. Getting himself, and those who followed him, killed. I served House Stark once... but House Stark is dead."

- Robett Glover to Sansa Stark

Sybelle Glover is the wife of Robett Glover and a member of House Glover. Following the Ironborn capture of Deepwood Motte, she and her children Gawen and Erena Glover are thrown into prison by the Ironborn. Due to King Robb Stark's failure to come to the aid of House Glover, Robett refuses to assist his half-brother Jon Snow and sister Sansa Stark's efforts to retake Winterfell from House Bolton, who had helped them drive out the Ironborn earlier.

Behind the scenes
While she and her children remain unnamed in the television series, they were briefly mentioned in passing during a conversation between Robett Glover and Sansa Stark in Season 6.

In the books
In the books, Sybelle is a pious woman who prays in Deepwood Motte's godswood. In A Clash of Kings, she and her children Gawen and Erena are taken captive when Ironborn forces under Asha Greyjoy seize Deepwood Motte. In A Feast of Crows, Sybelle and her children are taken by Asha to the Ten Towers in Harlaw, one of the Iron Islands. Asha makes sure that Sybelle and her children are well taken care off and housed in one of the castle's towers instead of a dungeon. Asha also finds a goat for Erena after Sybelle is unable to produce anymore breast milk. In A Dance with Dragons, Sybelle returns with Asha to Deepwood Motte but her children are left in the care of Asha's aunts at the Ten Towers. She prays for the well-being of her husband and children. After Deepwood Motte is liberated by King Stannis Baratheon's forces, Sybelle pledges House Glover's allegiance to King Stannis. She later ransoms seven of Asha's men to escort Tycho Nestoris to Stannis's army.