Dee ihe ga-aga n'ihu na paragraf a - Prince Nikolai Petrovitch Troubetzkoy (1828<unk>1900) bụ onye ndụmọdụ nzuzo na Chamberlain nke Russian Imperial Court. Onye ikwu Decembrist
Prince Sergei Petrovich Troubetzkoy, ọ rụrụ ọrụ dịka Onye isi oche nke ngalaba Moscow nke Russian Musical Society. Ruo ọtụtụ afọ, ọ bụ ezigbo onye enyemaka nke onye na-ede egwú Nikolai Rubinstein.