The roosters will probably not learn to get along. Strange roosters are generally quite violent when put together. Even if they stop fighting, it is a temporary stoppage, and will resume often until you either separate them or one kills the other. Sometimes roosters raised together will be fine their whole lives, but just as often, one day blows up into a terrible fight. Like wise, a father/son relationship can work, but eventually will be fought out. Sometimes, if you have a very old rooster, add a younger rooster they will have a horrible fight, and if the older one bows out, sometimes they will live together, with the younger roo being the flock leader.
Probably VERY stressful on your hens. Two breeding age roosters need about 20+ hens or the hens are terribly stressed. Fighting roosters also stress your hens, this can cause a dramatic loss of egg production.
The easiest solution would to pick the rooster that you want and cull the other one. By culling, one can give it away or butcher it.
If you really want chicks from both roosters, you could build another coop and have two separate flocks, or create a bachelor pad, and put one rooster in there, while breeding with the other rooster..... and then alternate. However, I am not an advocate of this, as I do think birds are flock animals and need companionship. And one needs a great deal of space between these two coops, or you just have the fight going on through the wires.
Personally if I wanted both breeds, I would have one rooster one year, cull and get the other breed the next.
Ridgerunner, a very credible poster on this forum often asks this question, "Why do you want the rooster?" Make sure you answer it to the benefit of your whole flock.
Mrs K