* Klaus: He is portrayed as the most intellectually mature of the three. He is described as being good at reading and has a fondness for knowledge. He is likely the oldest of the three, possibly around 14-15 years old.
* Violet: She is described as a gifted inventor, constantly creating contraptions. She is likely the second oldest, perhaps around 12-13 years old.
* Sunny: She is the youngest of the trio, still a baby in the early books. Although her speech is limited to a series of "bites", she shows surprising intelligence and a keen sense of observation. Her age would likely be around 4-5 years old.
It's important to remember that the series follows a general pattern of danger and misfortune, and the orphans are constantly facing threats that make them appear more mature and resourceful than their actual age suggests.