 In May 1977, Mamie warned Marcel Lefebvre that saying a Mass in the Tridentine Rite could be a break with orthodox Catholicism.In the consistory of 24 May 1976, Pope Paul VI criticized Lefebvre by name and appealed to him and his followers to change their minds.On 29 June 1976, Lefebvre went ahead with planned priestly ordinations without the approval of the local bishop and despite receiving letters from Rome forbidding them.