Comparing the two fragrances…

Boadicea The Victorious

Roos&Roos
Regal
La Favorite
Only in Regal
Shared character
Both Regal and La Favorite feature a combination of musk, patchouli, saffron, and animalic notes. They both share floral, woody, patchouli, and warm spicy accords.
How they differ
Regal contains jasmine, rose, cedarwood, sandalwood, geranium, amber, green notes, violet, jasmine (Morocco), rose (India), Virginia cedar, hedione, herbs, violet absolute, green fruits, and summer fruits, resulting in spicy, powdery, oriental, animal, aromatic, fresh spicy, and rose accords. La Favorite contains pink pepper, oud / agarwood, and agarwood (oud), resulting in chypre, leather, earthy, metallic, oud, and soft spicy accords.
Who each suits
Regal suits those who prefer aromatic, powdery, and floral profiles with green and fruity elements. La Favorite suits those who prefer earthy, leathery, and metallic profiles with oud.
Only in La Favorite