After the Queen announced last month that Prince Philip would be stepping down from public life once he completed his scheduled engagements until August, concerns over the health of the 96-year-old Duke have sparked.
Buckingham Palace said at the time of the announcement that the decision to retire was not health-related.
Prince Philip is the nation's longest serving royal consort, who has been in good health throughout much his life. He practices healthy eating combined with moderate exercise. He takes the stairs daily and still manages to fit into the uniform he wore on his wedding day.
He continues to enjoy carriage driving and is looking forward to his leisure time when he steps away from the spotlight in a few months.
At his age, he has faced a number of health scares.
The Duke has previously been admitted to the hospital for abdominal surgery, bladder infections, and a blocked coronary artery.
Philip has always bounced back from his illness which shows his resilience.
Prince Philip also suffers from arthritis in his right wrist and he previously broke a bone in his ankle while playing polo. He was forced to give up playing polo in 1971, the year of his 50th birthday, because of his arthritic wrist. That's when he took up horse-carriage driving, a hobby he continues to this day.
Find out about his current hospitalization and how it affected the Queen's speech.