Britain's King Charles III speaks to students in the exhibition hall for sustainability as he visits the University of East London to mark the University's 125th anniversary and open a new frontline medical teaching hub in London, Wednesday, Feb. 8, 2023. (AP Photo/Frank Augstein, Pool)

Britain's King Charles III speaks to students in the exhibition hall for sustainability as he visits the University of East London to mark the University's 125th anniversary and open a new frontline medical teaching hub in London, Wednesday, Feb. 8, 2023. (AP Photo/Frank Augstein, Pool)

Britain's King Charles III speaks to students in the exhibition hall for sustainability as he visits the University of East London to mark the University's 125th anniversary and open a new frontline medical teaching hub in London, Wednesday, Feb. 8, 2023. (AP Photo/Frank Augstein, Pool)

Britain's King Charles III unveils a plaque as he visits the University of East London to mark the University's 125th anniversary and open a new frontline medical teaching hub in London, Wednesday, Feb. 8, 2023. (AP Photo/Frank Augstein, Pool)

Britain's King Charles III speaks to students and trainees at the Intensive Care Ward as he visits the University of East London to mark the University's 125th anniversary and open a new frontline medical teaching hub in London, Wednesday, Feb. 8, 2023.(AP Photo/Frank Augstein, Pool)

Britain's King Charles III speaks to particip[ants at the Baby Development Lab as he visits the University of East London to mark the University's 125th anniversary and open a new frontline medical teaching hub in London, Wednesday, Feb. 8, 2023.(AP Photo/Frank Augstein, Pool)

Britain's King Charles III receives flowers from a young boy as he visits the University of East London to mark the University's 125th anniversary and open a new frontline medical teaching hub in London, Wednesday, Feb. 8, 2023. (AP Photo/Frank Augstein, Pool)

Britain's King Charles III shakes hands with students as he visits the University of East London to mark the University's 125th anniversary and open a new frontline medical teaching hub in London, Wednesday, Feb. 8, 2023. (AP Photo/Frank Augstein, Pool)

Britain's King Charles III speaks to students and trainees at the Intensive Care Ward as he visits the University of East London to mark the University's 125th anniversary and open a new frontline medical teaching hub in London, Wednesday, Feb. 8, 2023. (AP Photo/Frank Augstein, Pool)

Britain's King Charles III speaks to students and trainees at the Intensive Care Ward as he visits the University of East London to mark the University's 125th anniversary and open a new frontline medical teaching hub in London, Wednesday, Feb. 8, 2023. (AP Photo/Frank Augstein, Pool)

Britain's King Charles III speaks to students and trainees at the Intensive Care Ward as he visits the University of East London to mark the University's 125th anniversary and open a new frontline medical teaching hub in London, Wednesday, Feb. 8, 2023. (AP Photo/Frank Augstein, Pool)

Britain's King Charles III receives flowers as he visits the University of East London to mark the University's 125th anniversary and open a new frontline medical teaching hub in London, Wednesday, Feb. 8, 2023. (AP Photo/Frank Augstein, Pool)

Britain's King Charles III speaks to particip[ants at the Baby Development Lab as he visits the University of East London to mark the University's 125th anniversary and open a new frontline medical teaching hub in London, Wednesday, Feb. 8, 2023. (AP Photo/Frank Augstein, Pool)

Britain's King Charles III speaks to participants at the Baby Development Lab as he visits the University of East London to mark the University's 125th anniversary and open a new frontline medical teaching hub in London, Wednesday, Feb. 8, 2023. (AP Photo/Frank Augstein, Pool)

Britain's King Charles III speaks to students and trainees at the Intensive Care Ward as he visits the University of East London to mark the University's 125th anniversary and open a new frontline medical teaching hub in London, Wednesday, Feb. 8, 2023. (AP Photo/Frank Augstein, Pool)

Britain's King Charles III talks to students as he visits the University of East London to mark the University's 125th anniversary and open a new frontline medical teaching hub in London, Wednesday, Feb. 8, 2023. (AP Photo/Frank Augstein, Pool)

Britain's King Charles III shakes hands with students as he visits the University of East London to mark the University's 125th anniversary and open a new frontline medical teaching hub in London, Wednesday, Feb. 8, 2023. (AP Photo/Frank Augstein, Pool)

Camilla, the Queen Consort and Colonel of the Grenadier Guards, speaks to soldiers after presenting medals to members of 1st Battalion as she visits Lille Barracks in Aldershot, England, Tuesday, Jan. 31, 2023. The Queen Consort meets members of the Battalion, presents medals and meets families during her visit.(AP Photo/Alastair Grant, Pool)

Camilla, the Queen Consort and Colonel of the Grenadier Guards, poses for a group photo as she visits Lille Barracks in Aldershot, England, Tuesday, Jan. 31, 2023. The Queen Consort meets members of the Battalion, presents medals and meets families during her visit.(AP Photo/Alastair Grant, Pool)

Camilla, the Queen Consort and Colonel of the Grenadier Guards, arrives for a group photo as she visits Lille Barracks in Aldershot, England, Tuesday, Jan. 31, 2023. The Queen Consort meets members of the Battalion, presents medals and meets families during her visit.(AP Photo/Alastair Grant, Pool)