Raden Saleh spent many years - the "best of his life" - in Germany. In the mid-19th century, the Javan artist became one of the founders of German Orientalism.
Many long-established Arab rulers were toppled during the Arab Spring in 2011. But not all of them: the Sultan of Oman has been head of the Gulf state for forty years – and is as popular as ever. By Anne Allmeling