Bernard de Jusix governed the Order for only a few short years from 1301 to 1303. In fact, little is known on Bernard de Jusix of certainty. A quick internet search reveals little on his life.
In "The Dominicans" by Benedict M. Ashley, he writes of this era: "In these complex times Dominican community life suffered one of its sharpest declines in the Order's whole history. Although by 1303 it had reached 20,000 friars, the Black Death carried away a third and perhaps a half." Furthermore, he writes, "For the first half of the century the General Chapters were hampered by the rapid turn-over of Masters. Albert Chiavari (1300) died after three months. Bernard de Jusix in two years..."
Yet by the grace of God the Order of Friar Preachers spread and continues to serve the True Faith.
Let us pray for the repose of the soul of Bernard de Jusix and all Dominicans.
Pater Noster. Ave Maria. Requiem aeternam.