| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Sieglinde | chestnut | f | 1962 | Iwan 798 | Lotterie 5796 | Hannoveraner | ||
| Sieglinde | f | 1962 | Iwan 798 | Lotterie 5796 | Hannoveraner | Germany | ||
| Sieglinde | f | 1887 | Syringa | vostochno-prusskaya | ||||
| Sieglinde | chestnut | f | 1965 | Hannoveraner | ||||
| Siemone | f | 1980 | Ronald 210403070 | Isabell | Holsteiner | |||
| Sientje | f | 1976 | gollandskaya teplokrovnaya | |||||
| Siera | chestnut | f | 2012 | 595 Esson | 01139 Simpatija | Trakehner | KSK "Ejfel" | |
| Sierano | chestnut | f | Persian Path S | Kamilla Bella | gollandskaya teplokrovnaya | |||
| 2118 Sierra | bay | f | 1995 | 165 Efir 56 | 926 Schisma | Trakehner | Gestut Dowator (RZOP KS i K) | |
| 756 Siesta | chestnut | f | 1972 | 65 Epigraf 22 | 261 Strefa | Trakehner | Gestut Dowator (RZOP KS i K) |