Six members of a family belong to three generations and were born in different years between 2002 and 2022. Their ages are calculated as of the year 2...

Six members of a family belong to three generations and were born in different years between 2002 and 2022. Their ages are calculated as of the year 2023. The spouse of Q has an age that is a prime number. S is the son of O's son. The difference between the oldest and youngest family member's ages is 15 years, which is also equal to the sum of the ages of Q and S. N is the sister-in-law of the person who is 4 years younger than the oldest member. The number of family members born after R is equal to the number born before Q. M is married and is R's nephew. The difference between the ages of O's sibling and O's son equals the age of Q's son. The ages of N and O are multiples of 7. The family has an equal number of males and females. The sum of the ages of M and S equals R's age. N is older than O.

What is the age of the oldest person in the family?