He had one of the greatest minds of the twelfth century

From Small Wars, Faraway Places by Michael Burleigh. Page 37.

While Leclerc was commander-in-chief Indochina, de Gaulle’s new High Commissioner was Admiral Thierry d’Argenlieu, a militant rightwing Catholic and former Carmelite friar. A member of his staff said he ‘had one of the greatest minds of the twelfth century’.