Princess Charlene is back in business: Royal is chic in a black and white dress as she visits the Princess Grace Hospital Centre in her first solo engagement since her return to Monaco

Princess Charlene stepped out for her first solo engagement since returning to Monaco after a stint in a treatment centre for 'exhaustion'. The princess, 44, who shares seven-year-old twins Gabriella and Jacques with husband Prince Albert, 64, paid a visit to patients, staff and families at the Princess Grace Hospital Centre (pictured), the only public hospital in Monaco. Charlene is slowly readjusting to royal duties after remaining largely out of the public eye over the last 18 months. She spent 10 months in her native South Africa last year after contracting a sinus infection that later required surgery. She returned to Monaco in November but was there for a matter of days before leaving for a Swiss treatment facility. The exact nature of her condition was not made public but Albert said she was 'exhausted'.

Princess Charlotte charmed sports fans at the Commonwealth Games last week.

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