When crowns collide: Spanish royals visit the Windsors

Prince Charles kisses Queen Letizia of Spain on the hand as she arrives to view the Francisco de Zurbarán art collection, Jacob and His Twelve Sons, at Auckland Castle on April 5, 2022.
A version of this story appeared in the April 8 edition of CNN's Royal News, a weekly dispatch bringing you the inside track on Britain's royal family. Sign up here.

London (CNN)When European royals come together, it tends to be for landmark moments like jubilees, weddings and funerals. So it was a nice change of pace this week when Prince Charles teamed up with Queen Letizia of Spain for a rare joint appearance.

The duo met at Auckland Castle in County Durham, northern England, where the two art lovers viewed Francisco de Zurbarán's series of paintings "Jacob and His Twelve Sons."
The 17th-century Spanish painter's 13 life-sized works adorn the walls of the castle's Long Dining Room and have been housed at the residence for 250 years.
    The pair then officially opened the town's new Spanish Gallery, the first exhibition space devoted exclusively to the art, history and culture of Spain in the UK.
      Joint engagements such as these tend to be over shared interests.
      Letizia's passion for the arts is well known. She has consistently used her position to raise the profile of Spanish cultural projects globally and as such would have been keen to participate in this week's events.
      She's also joined forces with Charles before, with the pair seen together in 2019 for the inauguration of the "Sorolla: Spanish Master of Light" exhibition at London's National Gallery.
        In light of Letizia's involvement, we reached out to C