In the Frankenstein household, there are his parents, Ernest Frankenstein, Victor's brother who is six years younger than he; William Frankenstein, Victor’s youngest brother, Elizabeth Lavenza, Victor’s foster sister; and Justine Moritz, a servant. Since she is on her deathbed, Victor's mother extracts a promise that Victor and Elisabeth will marry someday.
Shortly before Victor is set to Ingolstadt and the University, his mother dies from exposure to the scarlet fever which Elisabeth contracted. As a result, Victor delays his trip some weeks in order to console Elisabeth, whom her mother has loved deeply. In fact, on her death-bed, the mother takes Victor's and Elisabeth's hands and joins them together, saying that she hopes these two will someday be married. She adds, "This expectation will now be the consolation of your father." And so, Victor and Elisabeth have promised her that they will marry each other. As he departs, Victor reflects that he will soon be in the company of strangers.