In the United States, three of the nine incumbent Justices of the Supreme Court are Oxonians, namely Stephen Breyer, Elena Kagan, and Neil Gorsuch; retired Justices include John Marshall Harlan II, David Souter and Byron White. Internationally, Oxonians Sir Humphrey Waldock served in the International Court of Justice; Akua Kuenyehia, sat in the International Criminal Court; Sir Nicolas Bratza and Paul Mahoney sat in the European Court of Human Rights; Kenneth Hayne, Dyson Heydon, as well as Patrick Keane sat in the High Court of Australia; both Kailas Nath Wanchoo, A. N. Ray served as Chief Justices of the Supreme Court of India; Cornelia Sorabji, Oxford's first female law student, was India's first female advocate; in Hong Kong, Aarif Barma, Thomas Au and Doreen Le Pichon currently serve in the Court of Appeal (Hong Kong), while Charles Ching and Henry Litton both served as Permanent Judges of the Court of Final Appeal of Hong Kong; six Puisne Justices of the Supreme Court of Canada and a chief justice of the now defunct Federal Court of Canada were also educated at Oxford.