Introducing The First Grandma.

Marian Robinson, the mother-in-law of President-Elect Barack Obama is moving into the White House- at least temporarily- to support her daughter Michelle and granddaughters Sasha and Malia as they adjust to their new life in Washington, transition officials said Friday.

Mrs. Robinson, a Chicago native who retired from her job as a bank executive secretary last summer, has never lived outside of The Windy City, so the move will be as big an adjustment for her as it will be for the other four members of The First Family. Barack Obama has called her one of the unsung heroes of his campaign.

“Mrs. Robinson will be coming with the family to help the girls get acclimated, and she will determine in the coming months whether or not she wants to stay in D.C. permanently,” said Katie McCormick Lelyveld, spokeswoman for Michelle Obama.

“She didn’t want anyone else taking care of the kids but her,” McCormick Lelyveld added. “She wanted to be the one there.”