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| : Three Crown Petrov of Sherwood Russian Blue (RUS) Inbreeding coefficient: 46.18 % (4) - 58.17 % (10) Ancestor loss coefficient: 50.00 % (4) - 2.26 % (12)   | : CH Blue Bass af Mölleby of Cossack Russian Blue (RUS) | : Maxen av Olsenburg Russian Blue (RUS) | GIC, RW Lilleman av Olsenburg Russian Blue (RUS) | IC Andruschka av Olsenburg Russian Blue (RUS) | : IC, RW Blue Bell of Finlandia Russian Blue (RUS) | IC Hans af Bellahöj Russian Blue (RUS) | Tanja av Olsenburg Russian Blue (RUS) | : CH Zinaida af Braheborg Russian Blue (RUS) | : CH Blue Bass af Mölleby of Cossack Russian Blue (RUS) | Maxen av Olsenburg Russian Blue (RUS) | IC, RW Blue Bell of Finlandia Russian Blue (RUS) | : CH Blueberry af Mölleby Russian Blue (RUS) | GIC, RW Lilleman av Olsenburg Russian Blue (RUS) | IC, RW Blue Bell of Finlandia Russian Blue (RUS) | ||||
| : Three Crown Tasha of Sherwood Russian Blue (RUS) | ||||||||||||||||||