Samuel Alito, the US supreme court justice, accepted $900 concert tickets from a Catholic German aristocrat known for her unabashed conservative views and ties to rightwing activists, his latest financial disclosure form reveals.

Princess Gloria von Thurn und Taxis reportedly gifted the tickets to Alito and his wife to allow them to attend the Regensburg castle festival, an annual summer music extravaganza hosted at her 500-room castle in Bavaria.

The princess, a descendant of princes of the Holy Roman empire, is noted for ties with Steve Bannon, a key supporter and former aide of Donald Trump, and connections to figures in the Catholic hierarchy opposed to Pope Francis.