The duchess and the queen rode in a luxurious train overnight from London to Cheshire Wednesday night, arriving in the small Northern English town Thursday morning.
The famed French couture house's British designer made her wedding dress. Meanwhile, the Queen also looked fabulous as ever - the monarch wore a smart lime green coat dress and carried a black handbag.
A palace source says Meghan's balcony position "would have come from her".
Markle is said to have broken yet another royal protocol when she arrived at Runcorn station without wearing a hat or a headpiece.
Following this, it is considered rude to present the Queen with your back, and most people will walk backwards away from her. Meghan did turn her back on the monarch when entering the vehicle, but avoided doing so again.
But the duchess was without gloves.
The pair were pictured smiling and laughing as they opened the Mersey Gateway Bridge, a new toll bridge over the River Mersey and one of the UK's biggest infrastructure projects in recent years.
The Duchess of Sussex stepped out with the Queen for two events in Cheshire, England, on Wednesday, and both women appeared to be in high spirits for their first outing together.
They then moved on to nearby Chester to officially open Storyhouse - a library, theatre, and cinema that provides activities for local marginalized groups.
Meghan, Duchess of Sussex.
The Queen then stepped back and allowed Meghan into the vehicle, as she followed closely behind.
The queen has reigned for years!
Meghan appeared to ask the Queen: "What's your preference?". Get HELLO! Canada, PEOPLE, Vanity Fair and over 100 more of the world's best magazines for one low monthly price at Texture by Next Issue.