| Figli | Nipoti | |
Brynhyfryd Heartsease   Brynhyfryd Smasher x Brynhyfryd Sweetheart |
Hefty Mike  Knowsley Boy x Brynhyfryd Heartsease |
Monty (can) Hefty Mike x Miss Saskatoon Hefty Mike x Miss Saskatoon |
| Hyfryg Imperator Hazelwood Samson x Brynhyfryd Heartsease |
||
| Lady Diana I V Hazelwood Samson x Brynhyfryd Heartsease |
||
| London Derry Knowsley Boy x Brynhyfryd Heartsease |