The custom piece featured black piping on the neckline and a matching waistband.

The marchioness also added a black veiled headpiece, likely due to the event’s formal nature.

Coincidence or not, it’s clear that Hanbury shares Middleton’s penchant for formal fashion.

Rose Hanbury and Kate Middleton talking

She accessorized with small drop earrings and kept her hair and makeup simple.

The look is brought up every winter as one of her best-ever seasonal ensembles, and for good reason.

It seems Hanbury agrees, as she appeared in strikingly similar accessories in 2020.

Rose Hanbury and Kate Middleton in similar white dress

The princess complemented it with matching gold earrings and pointy-toe pumps.

Rose Hanbury and Kate Middleton black outfits

Rose Hanbury and Kate Middleton fur hats

Rose Hanbury and Kate Middleton gold dress

Rose Hanbury and Kate Middleton wearing tiaras