A chapel is like a church.
Nobility were in charge of castles and surrounding areas.
In early castles, the chapel was located next to the main gate or some times near the keep so the king, lord, lady, and knights to get there fast or sometimes at night to and pray.
It was made of stone bricks. The walls were extremely thick for extra defence protection. Internally the castles were divided into 2. The castles also had a built in chapel.
Many did and some didn't. There are a few that only had one corner that was reserved to pray in with a small alter. The Tower of London has a chapel that dates to the Normans. Three masses were said a day and if an area had a large church it took the place of the private chapel.
They usually had their own chapels. St. James chapel in the Tower of London is a wonderful small Norman chapel. Most major keeps/castles had a beautiful chapel of some sort, but the families also supported the city or town church. The Medici family of Florence, Italy had their own chapel in the Peiti place, but they also attended the services in the Dumo and helped pay for the building.
Depended on the size of the castle. Some of the ones I have been to have a separate chapel, but others have a small one off the main room. Others may have just a corner.
the nobles houses were actually a fortified castles,large manor houses they would have rooms for the solider and guards halls for entertaining guests and a chapel for the lord to pray in.
Motte and bailey castles, Stone keep castles and Concentric castles
Glass production has been around for 3000 years but they were not incorporated into early castles for one obvious reason. They offer no military defense and castles were military installations. So its unlikely that windows were added till after the period that castles were strategically important. THis would have probably been during the Elizabethan/Tudor period when castles became more like stately homes than defensible miltary installations. Probably the only place you would have found glasing in a medieval Castle would have been the chapel which may have had a stained glass window in it. Of course castles could have been retrofitted with glass but few were built with it as part of the original design.
Stone castles, Concentric castles, Motte and Bailey Castles
the first kind of castles were moat and bailey castles.
there are two different types of castles. one is the royal castles and the private castles.