Michel-Louis Guérard des Lauriers (25 October 1898 – 27 February 1988) was a French Dominican theologian and, later in life, a Traditionalist Catholic bishop who supported sedevacantism and sedeprivationism and was excommunicated by the Holy See.
[citation needed] In 1933, he became a professor of philosophy at the Dominican school of theology Le Saulchoir, in Belgium.
In 1940, he received a doctorate in mathematics with thesis Sur les systèmes différentiels du second ordre qui admettent un groupe continu fini de transformations.
[6] Des Lauriers supported the belief that the current state of the papacy, based on Paul VI allegedly teaching heresy in the context of the Magisterium, was that Paul VI could not be a true pope, being only pope materially and not formally.
[7] Des Lauriers consecrated two bishops: Günther Storck (a German) on 30 April 1984, and Robert McKenna (an American) on 22 August 1986.