Vikings’ Alexander Ludwig thanks co-star girlfriend Kristy Dawn Dinsmore (Picture: Getty Images)

Vikings star Alexander Ludwig was all loved up at the San Diego Comic Con as he attended the event with his girlfriend Kristy Dawn Dinsmore.

The pair made an appearance at the Entertainment Weekly bash, which took place at the Hard Rock Hotel, and it seems they had the best of times.

Celebrating their relationship, the Bjorn star took to Instagram where he thanked his gal for standing by him.

The 27-year-old wrote: ‘The greatest thing that has ever happened to me is you @_kristydawndinsmore

‘I love you forever. Thanks for sticking by me through it all.’

And it seems as though the feelings are mutual, as the Amma actress uploaded the same post, adding: ‘Love you so much! @alexanderludwig.’

They enjoyed the Entertainment Weekly bash at San Diego Comic Con (Picture: WireImage)

Fans were quick to comment and couldn’t help but coo over the Viking duo.

‘Happy for You my man. So talented actor. Keep up the good work,’ one said while another added: ‘Such a beautiful thing to say to a partner.’

And it wasn’t just his followers who showered them with love, as Sophie Vavasseur, who played princess Ellisif, chimed in.

She commented: ‘That’s so lovely @alexanderludwig.’

The couple went public with their relationship at the end of last year, after Kristy made her Vikings debut.

The pair have been dating for some time (Picture: Rex Features)

They went public with their relationship last year (Picture: History)

Melting all the hearts, the actor praised his gal, who has been dubbed by her pals as the ‘tiniest viking’ – she is only 5ft3 after all.

He wrote: ‘Introducing #Amma #vikings she may be the smallest but no doubt she’s also the fiercest #viking.

‘It was one of the greatest gifts of my life to get to work with my woman @_kristydawndinsmore over the past two years on #vikings I love this character and everything you bring to it.’

Alexander added: ‘CONGRATULATIONS Baby!’

Ahead of her appearance, Kristy took to Instagram to tell her followers that she had finally made it on the show.

Writing underneath a number of pictures of herself on set, she said: ‘THE DAY HAS COME !! VIKINGS SEASON 5B Aires tonight. I am so very honoured to announce that Amma has arrived on season 5b..

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‘This was truly the most amazing moment and experience of my life, I am so ever grateful for all the knowledge, growth and friendships I discovered over the course of it all.’

Vikings season six is set to drop on Amazon Prime and the History Channel later this year.

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