Was There a King of Ireland During the Victorian Era?

No. During the Victorian era (1837–1901), Ireland was an integral part of the United Kingdom of Great Britain and Ireland. The monarch was Queen Victoria. Ireland had not had its own native king since the Norman invasion and the subsequent English/British conquest; the title "King of Ireland" was held by the British monarch (from 1542 onward) until the Irish Free State was established in 1922.