Had Maisie Williams' boyfriend been unable to answer a certain Game of Thrones question during a competitive round of Trivial Pursuits, we're pretty certain it would have been a deal-breaker.

The 20-year-old actress shared shared a cute photo of herself and other-half Ollie Jackson playing the board game together, during which Jackson had inadvertently picked a (very easy) (well, you'd hope) popular culture question.

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The question was: In Game of Thrones, what is the name of the tomboy daughter of Ned and Catelyn Stark?

Williams added the caption: 'He'd better get this one right.'

Yep, the answer is Williams' fearless Arya Stark.

The star has kept her relationship with university student Jackson - who she has been dating since 2015 - relatively low-key.

She finally debuted a picture of her non-famous beau on Instagram back in February, when the couple enjoyed a romantic Valentine's break in Paris.

Jackson then made his red carpet debut with Williams at the Los Angeles Premiere for the seventh series of Game of Thrones in July.

Williams shared the image on Instagram, and added the tongue-in-cheek caption: 'JESUS CHRIST, look at that DIAMOND on my arm.'

Speaking previously about their relationship, Williams disclosed to Instyle: 'People feel it's strange that someone who's famous can go out with someone who's normal.

'I don't meet anyone else. Maybe I'm doing it wrong, but I don't go to all these parties. I don't meet the other young, male actors.

'I just like normal people, I guess.'

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Naomi Gordon

Naomi Gordon is news writer mainly covering entertainment news with a focus on celebrity interviews and television.