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
Egbert was the Archbishop of Trier from 977 until his death.
Dirk II of Holland
…of Count Arnulf of Flanders. They had three known children. His son Arnulf became Count of Holland and Frisia after Dirk's death. The younger son Egbert became Archbishop of Trier in 977. His daughter Erlinde (or Herlinde) was an abbess. Dirk died in 988 and was buried in the stone church at Egmond…
Egbert, from his psalter. In this presentation miniature he presents the book to Saint Peter (in a facing portrait) in a characteristic statement of the indirect Petrine authority of the See of Trier.
So-called "Egbert shrine" in the Treasury of Trier Cathedral
Detail of the Trier enamels and gold reliefs on the treasure binding for the Codex Aureus of Echternach
The presentation miniature of the Codex Egberti, with Egbert's portrait