Princess Beatrice and Princess Eugenie have attended the church service many times over the years. However, this was the first time the public has seen the royals carry out this tradition since 2019.
This is because of the various coronavirus restrictions that have been in place over the last few years.
Not only was this the first church service in three years, it is also the first one without the Queen.
Queen Elizabeth II died in September this year and today’s walkabout was instead led by King Charles.
Princesses Eugenie and Beatrice both put on their finest looks for the outing.
Princess Eugenie opted for the more muted look, wearing a light tan coat.
Princess Beatrice, on the other hand, wore a dark green coat and she was seen walking with her husband and step-son Christopher Woolf.
They attended the service with royals including Kate, Princess of Wales and Sophie, Countess of Wessex.
Princess Eugenie chose a timeless style as she wore a long, tan trench coat.
She stayed warm with a pair of thick black tights and heeled black boots and accessorised with chunky gold hoops.
Her older sister, Princess Beatrice, opted for a deep green coat as she walked to church with husband Edoardo Mapelli Mozzi.
The long coat also featured a thick belt in the middle which helped show off her slim frame.
It had statement furry cuffs appeared to be the Shrimps River Coat in Forest Green, which Beatrice has previously sported in 2020.
She wore a pair of black gloves and carried a small black bag in her hand.
Like Eugenie and others in attendance, she wore her hair down completed with a headpiece.
Beatrice had on a fascinator in the same colour as her coat. It had a large flower and feathers on it.