Well, Dietrich Bonhoeffer was hanged in a concentration camp because he basically lived the ethics that he taught. Bonhoeffer was an advocate for Jews in national socialist Germany during World War two, and that landed him in prison.
Bushranger Ned Kelly was sentenced to death by hanging, by Judge Redmond Barry on 29 October 1880. He was hanged in Melbourne Gaol on 11 November 1880.