Martin Chuzzlewit was raised by his grandfather and namesake.

Years before, Martin senior takes the precaution of raising an orphaned girl, Mary.

She is to be his nursemaid, with the understanding that she should be well cared for only for as long as he lived.

She would thus have great motivation to care for his well-being, in contrast to his relatives, who only want to inherit his money.

However, his grandson Martin, falls in love with Mary and wishes to marry her, ruining senior Martin's plans.

When Martin refuses to give up the engagement, his grandfather disinherits him...(Excerpt from Wikipedia)