The duchesses chatted and appeared to joke as they walked towards the church, flanked by their husbands.
Prince Charles – attending without Camilla who was still recovering from a heavy cold – walked a little way ahead.
Yet body language expert Judi James told The Express that despite their best efforts, there were moments the royals – especially Harry and William – looked “ill at ease” in each other’s company and at times, the sisters-in-law appeared “performed” as if “they’re possibly trying a bit too hard” to look comfortable together.