Crowntron died in 1986. However, the last Crowntrons were born in 1993! One of them was even named Last Crowntron.
Some frozen semen was sold after his death which produced this 1993 crop of eight horses.
Unfortunately, he hasn't left an impact in the Scandinavian bloodlines despite his 1st generation progeny was excellent. The best sons didn't sire anything special and even Queen L. hasn't have offspring even close to her level.
Regards,
Risto