Constance Sydney Holmes

Constance Sydney Holmes (1858–1947), usually known as Sydney Swettenham, was the first wife of British colonial official Frank Swettenham, the first Resident-General of the Federated Malay States.

She was the oldest daughter of Cecil Frederick Holmes, who was master of Druries house at Harrow School, and Constantia Louisa Laugher. The family were "members of the well-to-do Victorian middle class." In the summer of 1877, she was introduced to Frank Swettenham, a rising star in the British colonial civil service, whom she married in February 1878. Sydney was nineteen when she married and Frank Swettenham was twenty-seven years old. The couple sailed together for Singapore shortly after the wedding.

Sydney Swettenham initially threw herself into the social life of the colony, participating in activities such as tennis tournaments and amateur theatricals, and seems to have enjoyed considerable popularity during the early years of her marriage. However, the combination of the strain of her husband's infidelities and a family predisposition towards mental illness eventually led to the breakdown of the marriage and her commitment to an insane asylum in England. The Swettenhams were finally divorced in 1938 (Frank Swettenham remarried shortly thereafter). Sydney Swettenham outlived her husband by a year, dying on 22 November 1947 at Wyke House Lunatic Asylum, Isleworth, Middlesex.