In a shot from a meeting between the duke and London Mayor Sadiq Khan, People spotted two tributes to Middleton that were visible in the pic. To the left of the room, behind Khan's shoulder, a framed portrait from Prince William and Kate Middleton's engagement announcement sits on the table. The couple first announced their engagement back in November of 2010 and they were married the following April.
While the commemorative photo is quite notable, there is also a more recent wink to Middleton. On the ottoman in front of Khan sits Hold Still: A Portrait of Our Nation in 2020. The coffee table book was a community project launched by Middleton, who wanted to collect photos that helped “capture the spirit, the mood, the hopes, the fears and the feelings of the U.K.” during the coronavirus pandemic. Now, Prince William keeps his wife's book front and center.