The remaining Starks may be safe and sound (for now) at Winterfell, but the final season of Game of Thrones could bring more family drama because of Jon Snow pledging his allegiance to Daenaerys Targaryen.

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In the Season 7 finale, which debuted Sunday, Jon sent a raven to Sansa at Winterfell to inform her he's pledged the armies of the North to Daenaerys, and the two are mounting a defense of the Seven Kingdoms. But the full text of the message, revealed on HBO's Making Game of Thrones website, hints at potential points of tension between Sansa and Jon:

Sansa,

Cersei Lannister has pledged her forces to our cause, as has Daenerys Targaryen. And if we survive this war, I have pledged our forces to Daenerys at the rightful Queen of the Seven Kingdoms. We are both coming to organise the defence of the realm.

Jon Snow. Warden of the North.

One key detail is that Jon signed the message "Warden" and not "King in the North," which solidifies his endorsement of Daenaerys as queen of the Seven Kingdoms. He also stated "I have pledged," which indicates he made this decision without consulting Sansa or the alliance they recently forged in the North. That could prove divisive, as not only has Jon relinquished the North's independence, but has also pledged to Daenaerys, the daughter of the Mad King, against whom the banners fought in Robert's Rebellion.

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Game of Thrones' final season doesn’t yet have a release date, but the penultimate season is now available in full on HBO Go and HBO Now. Based on George R.R. Martin's bestselling fantasy series A Song of Ice and Fire, the hit drama stars Peter Dinklage as Tyrion Lannister, Nikolaj Coster-Waldau as Jaime Lannister, Lena Headey as Cersei Lannister, Emilia Clarke as Daenerys Targaryen and Kit Harington as Jon Snow.