This was a year whose high points included Joan Jonas’s luminous survey, the extravaganza “PST ART,” and the 24-karat beauty of a show “Siena: The Rise of Painting, 1300-1350.” ...

When Prince Harry took the microphone at a fundraiser for his charity Sentebale on Wednesday night, he acknowledged that the basement room of a Lower East Side art gallery wasn’t his usual haunt.