**Solution:**

To solve this problem, we need to analyze the given information and determine the minimum number of family members and the number of female members in the family. Let's break down the information step by step:

1. **Grandfather and Grandmother:** The presence of a grandfather and a grandmother indicates the existence of at least one father and one mother.

2. **Fathers and Mothers:** There are two fathers and two mothers, implying that each father and each mother has at least one child. So, we have a minimum of 2 fathers, 2 mothers, and 2 children.

3. **Children:** There are a total of 6 children mentioned in the information. Since we already have 2 children accounted for as mentioned above, we have 4 more children to consider.

4. **Grandchildren:** The information states that there are 4 grandchildren. Since grandchildren are the children of the children, this means that we have 4 more children who are parents of the grandchildren. So, we have a total of 8 children.

5. **Brothers and Sisters:** It is mentioned that there are 2 brothers and 2 sisters. Since brothers and sisters are siblings, this implies that we have 4 children who are brothers and sisters.

6. **Sons and Daughters:** The information specifies that there are 3 sons and 3 daughters. Since sons and daughters are also children, this means that we have 6 children who are sons and daughters.

7. **Father-in-law and Mother-in-law:** The presence of a father-in-law and a mother-in-law indicates that there is at least one married child in the family. So, we have a minimum of 1 son/daughter-in-law.

From the above analysis, we can conclude that the minimum number of family members is calculated as follows:

- Grandfather: 1
- Grandmother: 1
- Fathers: 2
- Mothers: 2
- Children (including sons and daughters): 8
- Son/Daughter-in-law: 1
- Father-in-law: 1
- Mother-in-law: 1

Therefore, the total number of family members is 1 + 1 + 2 + 2 + 8 + 1 + 1 + 1 = 17.

To find the number of female members in the family, we consider the following:

- Grandmother: 1
- Mothers: 2
- Children (including sons and daughters): 8
- Daughter-in-law: 1
- Mother-in-law: 1

Therefore, the total number of female members in the family is 1 + 2 + 8 + 1 + 1 = 13.

Hence, the minimum number of family members is 17 and the number of female members in the family is 13.