pursuivant

noun5

1. •
   A functionary of lower rank than a herald, but discharging similar duties; an attendant of the heralds, e.g. in the College of Arms.

   • How oft do they [the blessed Angels] with golden pineons, cleaue / The flitting skyes, like flying Pursuiuant, / Against fowle feendes to ayd vs millitant: […] — 1590
2. •
   A royal messenger, (particularly) one with the authority to execute warrants.
3. •
   A warrant officer.
4. •
   A Grand Lodge Officer who guards the inner door during a meeting of the Grand Lodge.
5. •
   (no longer used) A follower.