Jack Hill/ WPA Pool/Getty; BI
- Kate Middleton announced she is undergoing preventative chemotherapy for cancer on March 22.
- She didn't attend royal events for nearly six months amid her health struggles.
- But on Saturday, the princess returned to public duty at Trooping the Colour.
Kate Middleton finally returned to the public eye.
On March 22, the Princess of Wales revealed she was undergoing preventative chemotherapy for an unspecified type of cancer after months of speculation.