  A small fraction of Tidal Disruption Events (TDE) produce relativistic jets,
evidenced by their non-thermal X-ray spectra and transient radio emission. Here
we present milliarcsecond-resolution imaging results on TDE J1644+5734 with the
European VLBI Network (EVN). These provide a strong astrometric constraint on
the average apparent jet velocity <0.27, that constrains the intrinsic jet
velocity for a given viewing angle.
