Mubarak Al-Sabah Anglo-Kuwaiti Treaty with Great Britain on November 23, 1899, pledging himself and his successors not to receive foreign agents or representatives or to cede or sell territory without the approval of the British government, with this agreement, and the guarantee it represented in Kuwait and the Al-Sabah family, he is regarded as the founder of modern-day Kuwait. German explorer, Hermann Burchardt, photographed Sheikh Mubarak in 1903, in what is now an iconic photograph. Mubarak was born into Kuwaiti's powerful al-Sabah family in 1837 son of Sheikh Sabah II Al-Sabah (r. 1859-1866). Once he was older Mubarak served primarily as the
Anglo-Ottoman Convention of 1913 intervene in matters of the Gulf, of which the British desired to retain a monopoly. The Ottomans were willing to drop all claims to Bahrain, in which they had never been able to maintain anything but a symbolic role, but not Qatar. As a question of sovereignty, the Ottomans argued that the empire had always exercised effective sovereignty over the peninsula and could not justify the abandonment of territory which it had never formally renounced. Yet under considerable pressure it renounced claims to both (Articles 11 & 13) and a blue line was established to define the territorial limits of