$\theta^1$ Ori C as a medieval bully: a possible very recent ejection in
  the Trapezium
  We use Gaia EDR3 astrometry to propose that a dynamical interaction between
the multiple system $\theta^1$ Ori C and $\theta^1$ Ori F ejected the latter as
a walkaway star ~1100 years ago (without deceleration) or somewhat later (with
a more likely deceleration included). It is unclear whether the final 3-D
velocity of $\theta^1$ Ori F will be large enough to escape the Orion nebula
cluster.
