Anna Roselyn Evans, 46, was one of three people injured when driver Jake Waterhouse, 26, careered off the road and smashed into her tent at the Rhyd y Galen campsite in Bethel, near Caernarfon, Wales in the early hours of the morning.
Mrs Evans, a mother-of-two who was married to Huw Evans, a groundsman at Aberystwyth University, was rushed to hospital with critical injuries.
Waterhouse, of Partington, Greater Manchester, has already appeared in court to admit drink-driving and causing serious injury - but is now expected to be charged over her death.
He pleaded guilty to causing serious injury to Mrs Evans by dangerous driving, failing to provide a breath specimen and driving without a licence or insurance.
"It was one of the hardest things I've ever had to do. She was my mother, my best friend, my rock and I'm going to miss her so so much.
"She inspired me to do music, art and to always 'do the next interesting thing'. I know I'll do you proud.
Prosecutor Gareth Parry said Waterhouse had been drinking heavily before getting behind the wheel and had left Mrs Evans with fatal injuries.
Three other holidaymakers were also injured at the Rhyd y Galen campsite near Caernarfon, north Wales, but were all released after hospital treatment.
Carys Parry, defending, said that Waterhouse "takes full responsibility for the devastating events at the campsite." She added: "He is truly and deeply remorseful for his actions.
North Wales Police confirmed the mother had passed away, with DI Andy Gibson saying: "Our thoughts are with Mrs Evans’ family and friends at this very sad and distressing time for them.
"The investigation into this tragic incident continues and we are liaising closely with the Crown Prosecution Service."
A spokesperson for Aberystwyth University where Anna worked said she was a valued member of the team at Aberystwyth Arts Centre.
They said: "We are deeply saddened at the news of her untimely death and extend our sympathies to all her family at this most difficult time."
Emergency services rushed to the campsite - which describes itself as a "tranquil getaway" for holidaymakers seeking a break in 22 acres of farm land - at around 2am on Monday, August 19.
Pitches at the site near Caernarfon come from just £20 and there are also options including caravans and shepherds huts for glamping.
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