Daisy Goodwin thinks the fairy tale romance of Prince Harry and Meghan Markle will be turned into a television series in the future - but the story will be based on messages.

Prince Harry and Meghan Markle

Prince Harry and Meghan Markle

The 55-year-old writer - who spent years studying the diaries of the late Queen Victoria in order to turn her life into the small screen production 'Victoria' - believes the newly-engaged couple's relationship is the perfect tale to turn into a drama but creators will probably turn to their text exchange in order to build a picture of their connection.

Speaking to the Daily Star newspaper, Daisy said: "Whereas I used old diaries of Queen Victoria, I think the writer will be seeking out WhatsApp messages and emoticons exchanged between Meghan and Harry for material. I think they will probably contain better detail than any diary."

But, although she's only basing her series on Victoria's diaries, Daisy has plenty more to come as ITV have just commissioned a third instalment for next year.

She said: "Series three will start in 1848 which was a hugely dramatic and eventful time for both the royal family and Europe, with revolutions on the continent and uncertainty around the monarchy. Viewers can expect more drama than ever before in the third series."

And, although she loves Jenna Coleman and Tom Hughes playing Queen Victoria and Prince Albert, Daisy would like to see Helen Bonham Carter portray the monarch.

She explained: "I hope the series can run through Victoria's reign, I have thought about how it could continue ... I mean, yes, it could run and run...

"[A cast reshuffle] could be possible, [but] I have to say it would be very hard to top Jenna Coleman. I think it kind of depends really on the appetite of the public.

"Helena Bonham Carter would be good.. [But] for now I can only think of Jenna."