In this task, given a sentence in the English language, your task is to convert it into the Bengali language.

The three-year-old granddaughter of the Duchess of Cornwall will be the forth bridesmaid.
কর্নওয়ালের ডাচেসের তিনTবছর বয়েসি নাতনী চতুর্থতম কনের সখী হবে।