When the queen dies, the crown will go to her oldest son, Prince Charles. After Charles, the crown would go to his oldest son William, then William’s line of descendants.
The current order of succession looks like this:
1) Prince Charles
2) Prince William
3) Prince George
4) Princess Charlotte
5) Prince Louis
6) Prince Harry
7) Archie
8) Prince Andrew
9) Princess Beatrice
10) Princess Eugenie
11) August Brooksbank (son of Princess Eugenie)
https://en.wikipedia.org/wiki/Succession_to_the_British_throne
Spouses like Duchess Camilla and Duchess Kate get courtesy titles based on their marriages, but they are not in the line of succession.
Normally, the wife of the King legally and automatically becomes the queen consort. However, Camilla plans to be known as princess consort, for some reason.
Where’s Ralph?