please use google translate to translate the article to know exactly what he has been upto. Google translate told me this
"Almost three years after separation of the beautiful German Thyssen Gabriele Homey (October 2004), Aga Khan has been discovered for the first time with his new friend Witchestein Rose, the woman who, they say, has won her heart. And since the past two months, the couple separates and divides his time between Paris, London and Costa Esmeralda, where he is currently enjoying summer vacation. During her stay, Rose was presented to the Aga Khan's daughter, Princess Zara."