| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Sidnej | chestnut | c | 2001 | 147 Dragun | 1072 Sosna | Trakehner | Gestut Dowator (RZOP KS i K) | |
| Sidnej | bay | c | 2004 | 291 Sbor | 460 Dostojnaja | Hannoveraner | GSK Kirowskaja s ippodromom | |
| Sidrabs | c | Latvian Warmblut | ||||||
| Sidrabs L 1090 | c | 1978 | ||||||
| Sidrabs L1136 | c | neizvestnogo proiskhozhdeniya | ||||||
| Siegerin | f | net semeystva | Hannoveraner | |||||
| Siegerin | bay | f | 1926 | Trakehner | Germany | |||
| Sieghilde | chestnut | f | 1976 | Dutch Riding Horse and Pony Society | Niederlande | |||
| Sieglinde | chestnut | f | 1962 | Iwan 798 | Lotterie 5796 | Hannoveraner | ||
| Sieglinde | f | 1962 | Iwan 798 | Lotterie 5796 | Hannoveraner | Germany |