As the funeral procession for Queen Elizabeth II forges on, all eyes are on the royal family.

But if you look closely, the royals have also been paying their respect by their subtle outfit choices.

According to theDaily Mail, Kate has a close-knit family and that extends to their in-laws.

Kate Middleton smiling

Dressed in sleek black outfits, they appeared somber in mourning.

He wrote in anInstagrampost, “Queen Elizabeth II, the epitome of steady grace, resolve and reassurance.

Our constant in a world of change.

Carole and Michael Middleton arrive at the queen’s funeral

Thank you for a lifetime of service and leadership.”