William Temple was the son of Sir John Temple of Dublin and nephew of Rev. Dr. Thomas Temple DD. Born in London, and educated at Emmanuel College, Cambridge, Temple travelled across Europe, and was for some time a member of the Irish Parliament, employed on various diplomatic missions. During his time as a diplomat, Temple successfully negotiated the marriage of the Prince of Orange and Princess Mary of England, and the Triple Alliance of 1668. On his return he was much consulted by Charles II, but disapproving of the anti-Dutch courses adopted, retired to his house at Sheen.