Sir Travers Twiss QC FRS (19 March 1809 in London14 January 1897 in London) was an English jurist. He had a distinguished academic and legal career culminating in his appointment as Queen's Advocate-General. Twiss was particularly noted for his contribution to the theory of international law. He was widely consulted, and was asked to draw up the constitution of the Congo Free State. A prolific author, Twiss wrote many influential textbooks on legal matters. His public career came to a sudden end in 1872 after a scandal involving his wife Marie. He continued to research and publish on aspects of international law. Academic career Twiss was born in Marylebone in London. He was the eldest son of the Rev. Robert Twiss. At University College, Oxford, he obtained a first-class degree in mathematics and a second in classics in 1830, and was elected a Fellow of his college, of which he was afterwards successively bursar, dean and tutor. During his connection with Oxford, he was, inter alia, a public examiner in classics and mathematics, Drummond Professor of Political Economy (1842), and Regius Professor of Civil Law (1855). In 1862 he married Marie von Lynnseele. Marriage required him to forfeit his fellowship. In compensation he was elected to an Honorary Fellowship of University College. He published while at Oxford an epitome of Niebuhr's History of Rome, an annotated edition of Livy and other works, but his studies mainly lay in the direction of political economy, law, chiefly international law, and international politics. He was professor of international law at King's College London (1852–1855). Legal career In 1840, he was called to the bar at Lincoln's Inn, and became an advocate at Doctors' Commons. In the ecclesiastical courts he enjoyed a large practice, and filled many of the appointments incidental thereto, such as commissary-general of the city and diocese of Canterbury (1849), vicar-general to the archbishop (1852) and Chancellor of the diocese of London (1858). In 1858, when the Probate and Divorce Acts of 1857 came into force, and the ecclesiastical jurisdiction of Doctors' Commons had died, Twiss, like many other leading advocates of Doctors' Commons, became a QC, and in the same year was also elected a bencher of his Inn. His successful career continued in the civil courts, and in addition to his large practice he was appointed in 1862 Advocate-General to the Admiralty, and in 1867 Queen's Advocate-General. In 1867,