Who is Servilia Caepionis from Caesar's Women and what is their importance?

Servilia Caepionis is a descendant of the ancient Servii family, She is highly intelligent, ambitious, and aristocratic. Married twice, Servilia's first husband was Brutus's father, Marcus Junius Brutus the Elder, who was killed by Pompey. Her second husband, Decimus Junius Silanus, is a handsome but frail senator in Rome. Servilia deplores her husband's frailty and is happy to run the household. She is described as a domineering woman, who is well known for her cruelty to her slaves and obsessive control over her son.

Determined to make Brutus a powerful and influential Roman, she grooms her son from a young age. She focuses all of her attention on Brutus, as it is through him that she will attain the power she desires. Servilia even goes so far as to poison her brother Caepio in order to enhance Brutus's wealth and status.