The Ribaudequin is the upgrade of the Ribald. It has more hit points and a better attack, which deals more damage to buildings, and has a greater area of effect.
Unit Statistics
Vital
Type: Artillery
Available to: Savoy
Built at: Castle
Century: 15th
Cost: 100 Wood, 75 Florins, 2 population slots
Combat
HP: 250
Attack: 25
Armor/Pierce Armor: 1/8
Range: 7
Splash: 0.8
Special: +60 vs. stone buildings, +40 vs. all other buildings.
Upgrades
Upgrade from: Ribald
Upgrade Century: 15th
Speed: Cannon Foundries (Savoyard Unique Technology)
Commentary/Strategy
Ribaudequins are better at what they do. They're more durable and pack a bigger punch, but they don't fire any faster or farther, so the same rules for usage apply. Don't think you'll take out heavy-duty defenses with them; that's a good job for your Culverins.