Jonathan Swift stayed at that mansion and described it as 'With rows of books upon its shelves, written by Leslies all about themselves.

The country house presents a rather dour and austere façade and is sited in such a way so as to mask the gardens to an approaching visitor.

Lynn, the interior shows the hands of Lanyon and John Leslie himself through its strong Italian Renaissance feel.

[citation needed] Castle Leslie gained media attention in 2002 when Sir Paul McCartney married Heather Mills in the family church located on the estate, followed by a wedding banquet for 300 guests prepared by then executive chef, Noel McMeel.

This includes Irish poet W. B. Yeats, Irish statesman General Michael Collins, Rolling Stones frontman Sir Mick Jagger (1966),[4] British astronomer Sir Patrick Moore and the Duc de Valentinois.