Another year, another stunning Easter ensemble for Kate Middleton!

The 35-year-old Duchess of Cambridge wowed in a cream-colored, Catherine Walker dress coat and matching pillbox hat while attending a church service at St. George’s Chapel near Windsor Castle on Sunday, April 16.

MORE: Prince Charles Thought Prince William and Kate Middleton Were “Tasteless” Newlyweds

Though Kate’s outfit was gorgeous, Easter photos of the mom-of-two really went viral when she was spotted curtsying to Queen Elizabeth upon the monarch’s arrival to the royal family‘s gathering!

kate middleton getty images

Kate curtsying to Queen Elizabeth on April 16. (Photo Credit: Getty Images)

While Kate curtsied to the Queen, her husband, Prince William, bowed to his famous grandmother. Each action was a sign to respect — and a staple royal etiquette rule! — from the royal couple to Queen Elizabeth, as it was their first time seeing her that day.

MORE: Is Kate Middleton Pregnant? See the Photos Sparking Baby Rumors!

The Queen’s husband, Prince Philip, and her grandchildren Princess Beatrice and Princess Eugenie — the daughters of Prince Andrew and Sarah, Duchess of York — were also in attendance at the service.

MORE: Kate Middleton on Kids Prince George and Princess Charlotte — “Motherhood Is a Huge Challenge”

Sadly, Kate and William’s two children, Prince George, 3, and Princess Charlotte, 1, were not publicly photographed with their parents on Easter. William’s younger brother, Prince Harry also missed the family gathering as he was reportedly spending the holiday with his love, Meghan Markle, in Toronto.

Click through the gallery below to see more photos of Kate on Easter Sunday!