The 54 … One of Tilda Swanton boyfriends was known to be John Byrne who is also involved into cinema business and works as a playwright. [56] In 1997 their twin babies were born who were named Xavier and Honor. Tilda Swinton has been in 3 on-screen matchups, including Ewan McGregor in Young Adam (2003), Matthias Schoenaerts in A Bigger Splash (2015) and Tom Hiddleston in Only Lovers Left Alive (2013). She has lived in Scotland for over two decades, currently in Nairn , overlooking the Moray Firth in the Highland region of Scotland, with her children and partner Sandro Kopp , a German painter. And Tilda Swinton had her signature look on display once again on Sunday as she made a rare appearance alongside her partner Sandro Kopp, 41, at the International Film Festival in … However, there are no precise dates when the couple started a romantic relationship because it was never stated publicly. Tilda Swinton looks lovingly towards her longtime partner Sandro Kopp as they go for a stroll on Sunday (November 30) in New York City. Drei sind keiner zu viel: Neben dem langjährigen Partner gönnt sich Tilda Swinton einen jungen Lover - und alle sind zufrieden. And the current Tilda Swinton boyfriend is – John Byrne . Swinton and her former partner John Byrne, a Scottish artist and playwright, have two children, twins Honor and Xavier Swinton Byrne, born in 1997.