黒い騎士 /ku roi ki shi/. If by chance you would mean a black person by 'black' that would be 黒人の騎士 /ko ku jin no ki shi/.
'Ice knight' may be expressed as 氷の騎士 (koori no kishi) in Japanese.
ホワイトナイト Howaitonaito 白騎士 Shiro Kishi
Hermann Balck was born in 1893.
Heike Balck was born in 1970.
Viktor Balck was born in 1844.
Viktor Balck died in 1928.
The Japanese equivalent to a knight would most likely be a Samurai
Hermann Balck died on 1982-11-29.
騎士 (ki shi) is Japanese for 'knight' ナイト (na i to) is also Japanese 'gairaigo' (borrowed word) for both 'night' and 'knight'.
Japanese
You could say 'shi no kishi,' written: 死の騎士
Aka no kishi