When he knew (epignous). Second aorist active participle from epiginōskō, having gained full (epi, added knowledge).
Of Herod’s jurisdiction (ek tēs exousias Hērōidou). Herod was naturally jealous of any encroachment by Pilate, the Roman Procurator of Judea. So here was a chance to respect the prerogative (exousia) of Herod and get rid of this troublesome case also.
Sent him up (anepempsen). First aorist active indicative of anapempō. This common verb is used of sending back as in Luk 23:11 or of sending up to a higher court as of Paul to Caesar (Act 25:21).
Who himself also was (onta kai auton). Being also himself in Jerusalem. Present active participle of eimi.