No, Marianna Sotomayor does not appear to be related to Justice Sonia Sotomayor in any way. 

Marianna is a reporter for The Washington Post, and Sonia is a United States Supreme Court associate justice. Sotomayor is the first female justice on the Supreme Court.

Furthermore, other than the fact that they share a surname, there is no indication that they are connected. Therefore, Sonia is not the mother of Marianna.

In terms of her family, Sonia Sotomayor has a younger brother named Juan. These two siblings are three years apart in age.

Sonia was born in 1954, making her 67 years old now. Juan, on the other hand, was born in 1957 and is currently 64 years old. Sonia’s younger brother, Juan Sotomayor Jr., was born and reared in New York City by his parents, Juan Sotomayor Sr., and Celina Baez Sotomayor.