A relationship expert explains Meghan and Harry's chemistry and what it means for their marriage

Royal romances have fascinated us for centuries, but none more so than Queen Elizabeth II and her descendants. We take a look back at how their relationships begun. Kate Thornton is also joined by dating expert Jo Hemmings, royal commentator Victoria Arbiter and historian Kate Williams. They discuss the dynamics of William and Kate and Harry and Meghan’s marriages and Jo tells The Royal Box what advice she would give to those marrying into the fold. Watch the full episode 15 of Yahoo UK’s show ‘The Royal Box,‘  here .

Duchess of Cambridge is pretty in pink Gucci dress at gala dinner

And gorgeous statement earrings.

Duchess of Cambridge addresses struggles of motherhood: 'I was very naive as a parent'

Kate opened up about her own experiences during a mental health in education conference.

What the royal family have worn to the BAFTAs throughout the years

The 'very cool' parenting technique Anne Hathaway's borrowed from the Duchess of Cambridge

She said she'd read about the "really cool" way the Duke and Duchess of Cambridge speak to their children

Duchess of Cambridge stuns in spectacular one-shoulder dress at BAFTAs 2019

Stunning.

Royals on the red carpet: The best moments in pictures

From Princess Diana to the Duchess of Cambridge, we chart the most memorable royal red carpet moments of all time.

The Royal Box episode 15: Meghan's banana backlash and Camilla's popularity

Kate Thornton speaks to royal commentator Victoria Arbiter, historian Kate Williams and PR expert Nick Ede about the backlash against Meghan Markle in the media and why her inspirational banana messages for sex workers divided opinion. It’s also been 20 years since Prince Charles and Camilla Parker Bowles made their official public debut as a couple. The experts discuss why there isn’t more interest in the Duchess of Cornwall and why there’s such a big debate about her future title. Plus we take a look back at what the Cambridges and Sussexes have been up to over the past couple of weeks. Watch more of Yahoo UK’s show ‘The Royal Box'  here.  

Royal fans notice 'angry face' in Kate's designer dress

We can't un-see it now.

Kate Middleton's style file: Every outfit the Duchess of Cambridge has worn to work in 2019

Every look the Duchess of Cambridge has worn in 2019 so far.

Duchess of Cambridge reveals Prince Louis has mastered this sweet milestone

We've only seen the royal tot a handful of times since his birth.

Kate Middleton Paid Tribute To Diana In Dundee With Her Sapphire Earrings

The jewels coordinate with her engagement ring perfectly

Kate Middleton reportedly wants to have a fourth child in 2020 for this special reason

Our hearts!

So, it definitely looks like this is Kate Middleton's favourite coat

Duchess of Cambridge shows sartorial diplomacy in tartan on Dundee trip with William

The city is just a few miles away from where William and Kate first met.

Did Camilla Parker Bowles just borrow Meghan Markle's handbag?

It seems the 'Meghan Effect' has finally infiltrated Kensington Palace.

Kate's Beulah London dress has a touching story behind it

The Duchess of Cambridge's outfit showed support for a worthy cause.

The Duchess of Cambridge opens up about the challenges of motherhood: "It's so hard"

'Everybody experiences the same struggle'

Duchess of Cambridge launches new helpline for families in need

Kate bonded with families who have been supported by the charity.

Kate Middleton's Head-to-Toe Green Outfit is a Lesson in Color Coordination

The Duchess chose a Beulah dress for a charity appearance in London.

Pregnant Meghan Markle wears £25 maternity dress for London outing

The Duchess of Sussex demonstrated how to wear high street maternity wear on her first solo engagement of 2019.

Kate Middleton's pizza topping opinions are... interesting?

Duchess has THOUGHTS about pepperoni

Kate Follows In Meghan's Footsteps With Fashion Ode To Diana

We're loving the purple

Harry and Meghan's Sweetly Held Hands at Their First Joint Engagement Of The Year

Royal Family celebrates Kate's birthday with lovely photos of the Duchess

The Duchess of Cambridge turned 37 on January 9.