King Charles 'frustrated' like 'caged lion' after cancer diagnosis for one key reason
![King Charles 'frustrated' like 'caged lion' after cancer diagnosis for one key reason](https://i2-prod.dailystar.co.uk/incoming/article32742175.ece/ALTERNATES/s615/0_King-Charles-III-Attends-Sunday-Church-in-Sandringham.jpg)
King Charles' cancer diagnosis has left him 'frustrated' like 'caged lion' for one key reason, sources close to the monarch revealed as he returns to public duties