PH-KBX carring the Dutch Royal Couple is currently on its way back to The Hague, The Netherlands from Poznan, Poland (EPPO).
One may easy follow on FR24:
http://www.flightradar24.com/PHKBX/3a9db2c
Netherlands Government
Aircraft(F70) Fokker 70
Registration(4840CE) PH-KBX
Altitude 33,960 ft
Vertical Speed 0 fpm
Speed 380 kt
Track 272°
Latitude 52.4768
Longitude 8.7569
Radar T-MLAT
Squawk 1000
PS. Not shure if this is the best to place this info. Moderator can move it of course