Dirk II or Theoderic II was a count in West Frisia, and ancestor of the counts of Holland. He was the son and heir of Dirk I and his wife Geva.
Dirk and his wife implore Saint Adalbert, illustration from the Egmond Gospels
Adalbert of Egmond was a Northumbrian Anglo-Saxon missionary. He was one of Willibrord's companions in preaching the gospel in Holland and Frisia.
Painting of Saints Bonifatius, Gregorius, Adelbert, and priest Jeroen van Noordwijk [nl], by Jan Joesten van Hillegom, 1530