Italy’s top administrative court has ruled against a conservative think tank affiliated with former White House adviser Steve Bannon over its use of a hilltop monastery to train future populist leaders.

The Council of State ruled Monday that the Culture Ministry was correct in cancelling the concession it had given to the Dignitatis Humanae Institute, or Human Dignity Institute, the ANSA news agency and RAI state television reported. The ruling overturned an earlier decision by a regional administrative tribunal that had sided with the institute.

Buoyed by Donald Trump’s 2016 victory and the rise of nationalist sentiment in Europe, Bannon and the institute had launched plans to establish an academy to train populists and nationalists at the 13th century Trisulti monastery, an abbey surrounded by a forest in the province of Frosinone south of Rome

But local residents objected and ultimately the Culture Ministry, under the leadership of the center-left politician Dario Franceschini, sought to revoke the lease, alleging a host of irregularities that the institute denied.

The center-left leader of the Lazio region, Nicola Zingaretti hailed the Council of State decision.