Looking on Zootierliste, the last time they were held in Europe was at Berlin in 1989. There are images of them at SDZSP in 2012 and 2014. Really cool to see that they're on display again.
@MonkeyBat SDZSP held them til some time in 2018, which was the last one in captivity at the time of its death. Quite interesting to see the species return.