Meanings of last redoubt in English

Isabella claims Granada, the last redoubt of Arab Spain.

I remembered Larry Oblivion's words, from the pitiful last redoubt of my Enemies in the future.

It can only be a matter of time before the fall of the last redoubt at Westminster.

Page 590: changed "redout" to "redoubt" ( last redoubt held)

When you're pleading that it's a matter for the tribunal, you're at the last redoubt of your defences.

And something like a fire is burning on the roofline above the last redoubt of the Ahnenerbe-SS: What's going on?

The last redoubt of antipotato prejudice was in England, and there it was not confined to a hidebound or superstitious peasantry.

He stood behind the piled sacks and lumber of a last redoubt abutting the stone barracks at the centre of the fort.

At least 2,500 Isis fighters remain, all survivors of routs to the east and west of their last redoubt.

The last Redoubt of Humanity, pinning all our hopes on the death of one man.

The government has denied charges of deliberately targeting civilians, and said Tiger fighters forcibly kept thousands of unwilling civilians with them in their last redoubts.