(serene highness) by Catherine II in 1776, died childless) Princes Pozharsky (extinct; Rurikids, a branch of the princes of Starodub) Princes of Pronsk Princes Prozorovsky-Galitzine Princes Prozorovsky-Golitsyns Princes Putyatin (a branch of the Drutsky princely family) Princes Puzyna (non-titled; a family of disputed descent, claimed as descended from the Princes of Kozelsk) R Princes Radzivill (Polish-Lithuanian magnates; titular princes of the Holy Roman Empire) Princes Ratievy (Ratishvili) Princes Razumovsky Princes Repnin (extinct Rurikids, a branch of the Obolensky family) Princes Repnin-Volkonskie Princes Robitovy (Robitashvili) Princess Romanov (Golitsyn) Princess Romanov (de Goshtoni) Princess Romanov-Knust Princess Romanov-Kurakina Princess Romanov (Mac Dugall) Princess Romanov-Paul Princess Romanovskaya-Strelna Prince Romanovsky-Brasov Prince Romanovsky Elijah Prince Romanovsky-Iskander Prince Romanovsky-Krasinsky Prince Romanovsky-Kutuzov Princes Romodanovsky (extinct Rurikids, a branch of the Princes of Starodub) Princes Romodanovsky-Lodyzhenskii Princes Rostov-Katyrevy Princes Rusievy (Rusishvili) Princes Rzhevsky (non-titled descendants of Smolensk Rurikids) S Princes Saakadze Princes Saginovy (Saginashvili) Prince Saltykovs (descendants of Count Nikolay Saltykov who received the title of serene prince in 1814) Princes Saltykov-Golovkin Princes of San Donato (Demidov family) Princes Sangushko (Gediminids) Princes Sapieha (Polish-Lithuanian magnates; in the 17th century two Sapiehas received the princely title of the Holy Roman Empire, but both died childless; the current descendants of the family use the title without due right; there is a comital line of the family, however, raised to counts of the Holy Roman Empire) Princes Satyginy-Kondiyskie (descendants of Mansi chieftains) Princes of Sayn-Wittgenstein-Berleburg-Ludwigsburg (German imperial counts; Pyotr Wittgenstein received the title of 'serene prince' in Russia in 1834) Princes Shahaevy (Tatar; non-titled) Princes Shahonsky (extinct; Yaroslavl Rurikids) Princes Shakhovsky (Yaroslavl Rurikids) Princes Shakhovskoi-Glebov-Streshneva (combined name - only the eldest in the family) Princes Shalikov (Shalikashvili) (2 kinds) Princes Shat-Ipa (Abkhazian) Princes Shchepin-Rostov (Rostov Rurikids) Princes Shcherbatovy (Rurikids; a branch of the Obolensky family) Princes Shchetinin (Yaroslavl Rurikids) Princes Sheleshpansky (Rurikids; a branch of Princes Belozersky) Princes Shervashidze Princes Shirinskie-Shikhmatov (Tatar; descendants of the Tatar aristocratic clan named Shir) Princes Shuiskys (Suzdal Rurikids): Kirdyapiny-Shuiskys Skopin-Shuiskys Humped-Shuiskys Princes Shumarovsky (Yaroslavl Rurikids; paternal to the Shamin, Golygin and Hodyryov families) Princes Sibirsky (formerly bore the title of princes; Genghisids) Princes Sidamonovy (Sidamon-Eristovy Sidamonidze) (Georgian nobility) Princes Skryabin (non-titled descendants of Smolensk Rurikids; a branch of the Travin noble family) Princes Solagovy (Solagashvili) (Georgian nobility) Princes Sontsovy-Zasyekins (Rurikids, a branch of the Zasyekin princely family) Princes of Starodub (Rurikids; historical rulers of the Principality of Starodub) Princes Stokasimovy (Tatar; descendants of Mirza Irezen Stokasimov)