| Theodericus of St. Trond |
Theodericus, Thierry or Diederik, abbot of the abbey of St. Truiden, late 11th and early 12th century.
He is considered to be the text writer of the Trudo office.
According to Smits van Waesberghe he is the composer of the Ordo Stellae of the Munsterbilzen Amorabdij.