No, her sister Aga never married and remained at home caring for her mother.
Your mother's sister's children, sons or daughters, are your first cousins. The children of first cousins are second cousins to each other. That is the relationship between your children, or either sex, and your first cousin's children, of either sex..
Muhammad was an only child. Neither his father nor his mother had any other children.
A stepsister or stepbrother is one with whom you do not have any blood ties. You are only related by marriage. If your mother marries a man who already has children of his own, they are your stepsisters or stepbrothers. That also makes the man she married your stepfather, and your mother is then stepmother to his children. If your mother and stepfather then have a child together, then that child will be your half brother or sister.
He had no children.
Since the father and mother each contribute half (23 chromosomes) of the genetic material needed to form a child (46 chromosomes), the brother and sister are equal in terms of biological similarity, no matter if they had a different mother (same father) or father (same mother). However, if any of the father/mother pairs are related, the result is skewed.
According to tradition, St. Anne was barren until she conceived Mary and Mary had no siblings. There is no confirmation in scripture.
No because you are not involved in the marriage. Your husband's or wife's sister would be your sister-in-law. Your son's mother in law is not related to you in any way.
Mother Teresa was a nun and never married nor had any children of her own.
As long as your mother is the owner of the property she has the right to convey it to anyone. If she conveyed it to your sister then your sister is now the owner and you have no rights in the property.
Her brother is Matt and sister is Michelle Her brother is Matt and sister is Michelle
* Most mothers love all their children the same. You sister is younger than you and therefore needs more care than you do, but this doesn't mean your mother loves you any less. You may be more mature and independent, but your sister isn't and your mother is trying to guide her through life. If this concerns you then have a talk with your mother and tell her how you feel. Once this is brought to your mother's attention I am sure she will explain things to you and be more aware of how you feel.
No, considering her sister has not had any children.