The Duchess of Cambridge will join Princess Anne for a rare joint engagement today, marking a royal first.

The two will go on a joint tour to medical schools that specialize in maternity healthcare.

The Royal College of Midwives (RCM) and the Royal College of Obstetricians and Gynecologists (RCOG) are patrons of the Royal College of Midwives (RCM) and the Royal College of Obstetricians and Gynecologists (RCOG), respectively, and the royal women will pay a visit to their London headquarters.

Both women are among the few current senior working royals, and they are typically only pictured together at family gatherings like Christmas at Sandringham or Trooping the Colour.

But, despite appearing to be at ease in one other’s presence, how close are they? Let’s have a look at this…

Because Anne, 71, is Kate’s husband Prince William’s aunt, it’s likely that Anne and Kate, 40, have spent a lot of time together at Royal Family gatherings.

When it comes to their formal royal duties, though, they rarely meet the path.

That isn’t to say Anne doesn’t seem to be interested in what Kate has been up to and the media exposure she is receiving.