Who married Lena Pislak?

Frank Uwe Laysiepen (German: [fʁaŋk ˈʔuːvə laɪˈziːpm̩]; 30 November 1943 – 2 March 2020), known professionally as Ulay, was a German artist based in Amsterdam and Ljubljana, who received international recognition for his Polaroid art and collaborative performance art with longtime companion Marina Abramović.