It was well known in the Hauteville family that Robert and William did not have a good relationship.
The reason is that they are half brothers with the same father, so their relationship is neither close nor distant.
So William would not be wary of his brothers and their descendants, but he would be wary of Robert's possible "seizure of power".
To put it simply, if William died unexpectedly in the war, Robert, with his demigod status and brotherly blood, would be the person with the greatest probability of taking his place.
So William’s attitude was very clear. The foundation I laid will be left to my descendants, and you can go to Italy to expand your territory.
In the end, Robert only conquered the Calabria region, which was considered a barely established foothold.
Of course, Calabria itself is mountainous and the environment is too barren, so on the one hand Robert needs to continue expanding to the northeast, preferably to the Apulia region, and on the other hand he can only continue to maintain relations with Sicily.
After learning that Robert had his own territory, William's attitude towards him softened a little. After all, they were both lords now, so William certainly couldn't treat him like a beggar anymore.
The superficial harmony did not solve the private discord. William was wary of Robert, and Robert resented William. They did not say it, but they all knew it.
The Otwell family, which obviously has two demigods, is at risk of splitting up because of this kind of thing. It has to be said that this is a very troublesome matter.
At this time, Roger proposed to Sidlifa, but it just happened to reveal this unspoken thing:
He wanted to use his identity as William's heir and Sidlifa's identity as Robert's daughter to bring the two demigods of the Otwell family, who were seemingly in harmony but actually alienated, together by establishing this marriage relationship.
Those who had figured out the trick could not help but look at Roger with admiration. This guy... at this time, he did not think about how to seize military power to increase his prestige and consolidate his position as heir, but instead focused on the longer-term demigod connections.
It is conceivable that if Roger inherits the Otteville family one day, then William is his direct demigod elder, and Robert is his father-in-law, which means that the family truly has two demigods that can be deployed.
The Kingdom of Sicily will surely enjoy long-term peace and stability as a result... What a long-term strategic vision!
Robert also understood this in an instant, and while he looked at his nephew with new eyes, his original thoughts also wavered. If what Roger said was true, then as long as Sidlifa and Roger gave birth to a child, it would mean that his bloodline would successfully inherit the Otwell family.
As a demigod, Robert, like William, will have to withdraw from worldly affairs at some point in the future and concentrate on resisting his own tendency to lose control.
The reason why he wanted to break up with William before was not only because he was angry at the other party for looking down on him at the beginning, but also because he felt that he was a member of the Otwell family but was excluded from the family by William, so he wanted to seize what belonged to him.