However in 1873 the Stewards cup was changed to a coxless four event .
This led to the adoption of Henley Regatta rules specifically prohibiting such conduct and a special prize for four - oared crews without coxswains was offered at the regatta in 1869 .
In 1873 the Stewards cup was changed to a coxless four event .
This led to the adoption of Henley Regatta rules specifically prohibiting such conduct and a special prize for four - oared crews without coxswains was offered at the regatta in 1869 .