Princess Kate's cancer treatment may take up to 12 months to complete, according to Royal Broadcaster and Historian Rafe Heydel-Mankoo.
This could mean that the Princess of Wales may not make any public appearances until later this year.
Heydel-Mankoo told GB News that preventative chemotherapy, the treatment Kate is undergoing, can take anywhere from three to 12 months, with four to six months being the average duration.
He urged royal fans to respect Kate's privacy and not speculate about her health.
The royal commentator defended Kate's request for privacy, saying, "We have to respect Kate's wishes and not speculate so much and stick to the facts."
He added that any significant updates to Kate's condition would be revealed via another video announcement or statement from Kensington Palace.
Meanwhile, Kate is expected to head to Sandringham next week to her residence, Amner Hall, where she will be joined by her parents and a small circle of family members.
Heydel-Mankoo said, "Her family is giving her the support and care that she needs, and I think we should be respectful of that."
Kensington Palace had earlier reassured royal fans that Kate would return to public duties "after Easter," but Heydel-Mankoo's comments suggest that her treatment may take longer than expected.
