According to Barry Wheeler,
(REICH WRECKS RUSSIANS, AEROPLANE October 2018)
at Schwechat Airport, the remains of the He 219 were V11 and V23.
Image description: The tail of one of a number of He 219 wrecks, including the V11 and V23 development airframes, which still littered the periphery of Schwechat well over a year after Germany’s May 1945 surrender.
Ľubor.