Dennise is a feminine given name derived from the French masculine name Denis. It is ultimately a variant of the ancient Roman name Dionysius, which originated from the Greek Dionysios. The name is associated with the Greek god Dionysus, the deity of wine, vegetation, pleasure, and ritual madness.

The name Dennise has its roots in the medieval era, when it was commonly used in France and other parts of Western Europe. It gained popularity during the Middle Ages, particularly among the French nobility and aristocracy. The earliest recorded instances of the name can be traced back to the 12th and 13th centuries in various historical documents and records.

One of the earliest known individuals with the name Dennise was Dennise de Montfort, a French noblewoman who lived in the 13th century. She was a prominent figure during the Albigensian Crusade and played a significant role in the defense of the city of Carcassonne against the crusaders.

Another notable figure with the name Dennise was Dennise de Rougemont, a 14th-century French poet and courtier. She was known for her poetic works and her involvement in the cultural and literary circles of the time.

In the 15th century, Dennise de Châteaupers was a French noblewoman and landowner who held considerable influence and power in the region of Auvergne. She was known for her involvement in local politics and her patronage of the arts.

During the Renaissance period, Dennise de Bourbon was a French princess and a member of the prestigious House of Bourbon. She was a patron of the arts and played a significant role in the cultural life of the French court during the 16th century.

In the 17th century, Dennise de Montmorency was a French aristocrat and a member of the influential Montmorency family. She was known for her involvement in the political intrigues and power struggles of the time, as well as her patronage of the arts and literature.

While the name Dennise has its roots in France and Western Europe, it has since spread to other parts of the world and has been adopted by various cultures and communities. However, its historical significance and association with the French nobility and aristocracy remain an integral part of its rich heritage.