Originally Posted by IAN-UK

Perhaps not, unless it is a *Gold designated lounge, and I don't think there is one at MAD.

The lounges are contract ones. Meaning each airlines negotiates the rates for providing a measure of comfort for its premium class and status passengers.

TAP has pulled out of those contracts. So fly out of MAD (and a whole raft of other airports) in business-class with TAP, and you get zilch.
It's a bewilderingly stupid move.