| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Una Corda 210016782 | f | 1982 | Calypso I 321210603473 | Flotte | Holsteiner | |||
| Unaniem | bay | c | 2001 | Numero Uno | Passivona | gollandskaya teplokrovnaya | Niederlande | |
| unbekannt | c | |||||||
| unbekannt | f | |||||||
| unbekannt | f | |||||||
| unbekannt | c | |||||||
| unbekant | f | |||||||
| unbekant | c | |||||||
| Unbill | d. chest. | f | 1934 | beberbekskaya | Beberbek, k/s | |||
| Unce 1844 | d.-bay | f | 1970 | Flagmanis Lb 703 | Ore 1277 | Latvian Warmblut |