I'm building my world for a tabletop rpg and I want it to be largely based on the underlying logic of medieval history.
So a typical knight would wear a full suit of white armour, have decent mobility and typically wield a bastard sword in two hands or a sword/mace/axe with a shield.
I've stumbled upon an article about a breastplate with the lower half being plate and the upper being brigandine, which was a popular design in France at the time. One of the supposed reasons for this is that brigandine on the chest and shoulders gave more freedom while wielding a greatsword. So was the mobility plate armour already gave not enough for the intricate fencing with a greatsword?
Now I'm looking for similar cases. For example, what pieces of armor would hinder an archer and why?
Hi there - we're happy to approve your question related to your creative project, and we are happy for people to answer. However, we should warn you that many flairs have become reluctant to answer questions for aspiring novelists and the like, based on past experience: some people working on creative projects have a tendency to try to pump historians for trivia while ignoring the bigger points they were making, while others have a tendency to argue with historians when the historical reality does not line up with what's needed for a particular scene or characterization. Please respect the answers of people who have generously given you their time, even if it's not always what you want to hear.
Additionally, as amazing as our flair panel is, we should also point out that /r/AskHistorians is not a professional historical consultation service. If you're asking a question here because you need vital research for a future commercial product such as a historical novel, you may be better off engaging a historical consultant at a fair hourly rate to answer these questions for you. We don't know what the going rate for consultancy work would be in your locality, but it may be worth looking into that if you have in-depth or highly plot-reliant questions for this project. Some /r/AskHistorians flairs could be receptive to working as a consultant in this way. However, if you wish for a flair here to do this work for you, you will need to organize this with them yourselves.
For more general advice about doing research to inform a creative project, please check out our Monday Methods post on the subject.