I've moved this out because it seems silly to quantify how real-world heritages feel about one another – even if it is hundreds of years ago.
| Heritage | Byzantines | Danish | English | Frankish | Irish | Italian | Moorish | Norwegian | Norman | Scottish | Spanish | Welsh | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Byzantines | P | N | N | N | N | A | T | N | A | N | N | N | 
| Danish | T | P | A | N | A | N | N | A | G | N | N | N | 
| English | N | A | P | A | N | T | N | A | H | A | T | N | 
| Frankish | P | T | N | N | ||||||||
| Irish | N | A | N | T | P | T | T | A | H | G | T | G | 
| Italian | T | P | A | N | ||||||||
| Moorish | T | P | N | N | H | |||||||
| Norwegian | G | A | P | N | A | N | ||||||
| Norman | H | P | A | A | ||||||||
| Scottish | N | G | A | A | P | G | G | |||||
| Spanish | N | N | T | H | A | T | P | N | ||||
| Welsh | G | H | G | N | P |