I have no head, and a tail I lack,
But oft have arms, and legs, and a back;
I inhabit the palace, the tavern, the cot-
‘Tis a beggarly residence where I am not.
If a monarch were present (I tell you no fable),
I still should be placed at the head of the table.
What am I?
[as always, will unmask submitted answers in 24-48 hrs, thanks!]