Internet swoons over Prince Harry's handsome and single cousin Louis Spencer

Now that Prince Harry is the Duke of Sussex, married to Meghan Markle and officially off the market, people may be hunting for their next royal crush.

Cue Louis Spencer, Harry and William's very good-looking and very available cousin.

Princess Diana's nephew sent the internet into an image-searching frenzy after turning heads at the Royal Wedding on Saturday.

He escorted his sisters and mother to the event, dressed in coat tails and just looking incredibly dashing.

As it turns out, rapper Nicki Minaj is ahead of the game - she's had a crush on Louis for years.

He hung out backstage after one of her concerts in 2015, prompting the rapper to post an Instagram photo of them captioned: "Check out our wedding photo."

The 24-year-old's full name is Louis Frederick John Spencer, Viscount Althorp, and he's in line to inherit his father's title, which would make him Earl Spencer.

Technically, the title is that of an aristocrat rather than a royal; but his future wife will still be a countess, so it hardly matters, right?

Also of interest - Louis is set to inherit the family fortune of over GBP £145 million (NZ$280 million).

And on top of that, he'll one day occupy the Althorp mansion, which boasts multiple dining rooms, a billiard room, an art gallery and horse stables.

Could it be any more fairy-tale worthy?

If Louis and his mansion don't quite sound like your cup of English Breakfast tea, you might prefer George Percy, who is set to become the 13th Duke of Northumberland.

He's also the heir to a huge sum of money, but his real draw card is the fact he comes with the rights to Alnwick Castle - more commonly known Hogwarts from the Harry Potter movies.

Newshub.