Sultan Muhammad V Russian model wife gave birth to a baby boy

In another Instagram posting, Ms Oksana said she was grateful for the safe outcome of her pregnancy.

"It was the most important and, at the same time, the most difficult period in my life. The last three months of pregnancy I spent in hospitals, staying in bed with droppers in my both hands. I had too many difficulties with pregnancy.

"The support of my closest people and my love for my son and Faith in the best helped me in that not simple time."