ΕπικεφαλίδαGagarin, Grigorij Grigorʹevič χρησιμοποιείται σε: Bibliothèque nationale de France, Paris
ΠαραλλαγήGagarin, Grigorii Grégorévitch, prince Russian
Gagarine, Grigori Grigorevitch Russian
Gagarine, Grégoire French
Гагарин, Григорий Григорьевич Russian
Πηγές
Βρίσκεται σεBnF Service russe, 2014-07-15. — Deutsche Nationalbibliothek - http://www.dnb.de (2014-07-07). — Sbornik vizantijskih i drevne-russkih ornamentov, sobrannyh i risovannyh knâzem Gr. Gr. Gagarinym : 50 tablic, 1993
Portrait of Grigory Gagarin, vice-president of Imperial Academy of Arts, 1867 by Viktor Bobrov, 1841-1918 [Viktor Bobrov / Museum of Academy of Arts, Saint Petersbutg -- Public domain -- http://commons.wikimedia.org/wiki/File:G. G. Gagarin 1867.jpg]