When the Breton Lion Guard became High King Emeric’s elite knightly order, he adopted the lion as his personal crest, and thereafter it became the martial symbol of the Daggerfall Covenant.
I'd say it more a local Wayrestian Order. Let those of Daggerfall be unhappy.
As a race, the Orcs have what we would call an inferiority complex. They’ve been kicked around Tamriel and looked down upon by the other races since the beginning of time, and they crave respect. It was a big deal for the Orcs when, in relatively recent history, Orsinium was finally admitted into the Second Empire as a full province. The clans that have joined the Daggerfall Covenant remember that period of recognition, and seek to revive it. The Bretons promised the Orcs could revive Orsinium unmolested, and that once the Covenant re-established the Empire, Orsinium would once again be an Imperial province.
I just wonder why Gortwog ever needed Numidium in the 3rd Era.
It’s definitely an alliance of convenience, much as when the Nords and Orcs marched to the aid of the Dwarves at the Battle of Red Mountain. Individual Bretons and Redguards may not be happy about it, but the residents of their border towns say it’s better to have the Orcs marching against their enemies than raiding their flocks and their farms. The Redguards and Orcs have always respected each other as honorable opponents – and while the Orcs may not trust the Bretons, as a general thing, they do trust King Emeric, who’s proven reliable. And serving side-by-side is building trust between the races.
Why the Redguard felf unhappy, when in 1E 700 the Battle of Red Mountain they even never arrived in Tamriel?
And wasn't exactly the Redguard massacring local Orcs in Hammerfell that led the Orcs running to High Rock to found Orsinium at the first place?
Political alliances and enmities can either mitigate or exaggerate religious differences. The leaders of the Covenant are eager to suppress religious conflicts between Bretons, Redguards, and Orcs in the interest of solidarity. And Orcish leaders, such as King Kurog, emphasize that the Orcs of Orsinium worship Mauloch, who absolutely isn’t a Daedric Prince at all, honest. It’s those other Orcs who worship the Daedra Lord Malacath.
Again, in 3rd Era this "Mauloch" changed his name as "Trinimac o'Gortworg"? Though I do think this setting plausible, if they would dig it deeper.
The Direnni Hegemony, in which High Elves ruled most of what is now the Daggerfall Covenant, was in decline by 1E 500, so it’s a good 3,000 years since the Bretons began home rule in High Rock. When the Redguards arrived in Hammerfell a few centuries later, Clan Direnni had already retreated to Balfiera Island in the Iliac Bay, where they still reside.
So what about now? I really wonder whether the Direnni would play some part during this confliction between DC and AD.