Alexander Ivanovich Zass (6 March 1888 – 26 September 1962)[2] was a Russian[3] strongman, professional wrestler, and animal trainer.

[4] As a prisoner, he pushed and pulled his cell bars as part of strength training,[9] which was cited as an example of the effectiveness of isometrics.

[8][9] It has been claimed that Zass was a spy and secret agent working for Russian military intelligence, using his circus travelling as cover.

[10] From the 1930s until his death, Zass lived in Hockley, Essex, staying in a bungalow along with other former circus acts.

[2] The inscription on the grave is: [three lines of Cyrillic script, translated as: Dear Shura [pet name for Alexander] You are always with us Sister Nadya Zass, nephew Yura] / ALEXANDER ZASS (Samson) / The worlds strongest man / died 26th Sept 1962 aged 74.