Woman devastated after daughter's passport gets denied because she was named after Game of Thrones character

It's not uncommon nowadays for first-time parents to name their newborns after their favourite television characters.

The Big Bang Theory saw a global surge in baby girls being named Penny, whilst more and more baby boys have been called Tommy and Arthur in recent years, after the Peaky Blinders brothers.

For one devastated mother, however, her decision to give her daughter the name of a much-loved Game of Thrones character would soon come back to bite her in the a*se, after the Passport Office denied the youngster documentation.

Lucy was forced to postpone her Disneyland holiday. (BBC/Family Handout))

British mum Lucy, from Wiltshire, had been saving for several months to take her little girl, six, on a 'dream' family trip to Disneyland Paris.

She's planned the excursion to a tee, booked the two of them onto flights, and purchased accommodation in the toddler-friendly resort.

It wasn't until she put forward an application for her daughter's first official passport, however, that the 39-year-old faced a major obstacle.

The Passport Office had denied the application on the grounds that Warner Bros had legally trademarked the name she'd given to her little girl.

Speaking to the BBC after the altercation, Lucy admitted: "I was absolutely devastated, we were so looking forward to our first holiday together.

"But then I had a letter come through from the Passport Office, saying her name is trademarked by Warner Brothers."

But what exactly had Lucy named her daughter that kicked up such a fuss?

Well, any fan of the fantasy HBO hit will know by now that the series is filled to the brim with unusual monikers.

Lucy had named her daughter after one of Daenerys Targaryen's many titles. (HBO/Warner Bros.)

And in the case of the silver-haired fan-favourite, Daenerys Targaryen, she actually goes by countless titles, including 'the First of Her Name', 'Queen of the Andals and the First Men', 'Protector of the Seven Kingdoms', 'the Mother of Dragons', 'the Unburnt', and the 'Breaker of Chains'.

One of the other names given to the controversial character - played by Emilia Clarke during the first season, however, is Khaleesi, being that she weds the chieftain of a Dothraki khalasar, Khal Drogo.

And after catching wind of ice-queen's catchy moniker, Lucy decided to name her little girl, Khaleesi, after her.

Little did she know, however, that she held no right to use the trademarked title on an official document, like a passport.

"It was the first I've heard of such a thing," Lucy confessed. "I was astonished."

The baffled mother took to social media to explain her predicament, after which a batch of her followers advised her to seek legal advice over the issue.

Thankfully, Lucy and Khaleesi's new passports should be arriving soon. (Isabel Pavia/Getty)

And thankfully, her team of solicitors soon discovered that though GOT has a trademark over the name Khaleesi, it applies to goods and services - not a person's name.

"That information was sent to the Passport Office who said I would need a letter from Warner Brothers to confirm my daughter is able to use that name," Lucy explained.

The Passport Office has since apologised for their error, claiming that a 'mistake' had been made on their end.

Sadly, however, Lucy and Khaleesi missed their trip, but they are hoping to rearrange it to a future date.

"I am hoping the passport will be issued soon and was promised that they would call back in a few days to see if it had progressed," she explained.

"I think there might be other people in this situation, who may have had their passports declined recently because of something like this.

"Hopefully, they now know it can be resolved."