She was taken in as a foundling, after the old woman who was caring for her died.
From the npr.org
He was nursed by his mother, but a foundling foster brother got most of the milk.
From the time.com
In short, Wikipedia has become a foundling home for the intellectually inept.
From the en.wikipedia.org
I called my wife, Terry, to see our foundling, and she was charmed with him.
From the post-gazette.com
Dr Ian Palmer was a foundling, abandoned at three days old in a phone box.
From the guardian.co.uk
At the foundling home Amalia had noticed that Paola's eyes seemed suspiciously filmy.
From the washingtonpost.com
Pauline is the only true foundling, having been the only survivor of a shipwrecked boat.
From the guardian.co.uk
The Hogarths had no children, although they fostered foundling children.
From the en.wikipedia.org
A foundling, abandoned by intelligentsia and raised by the yeomanry.
From the markvernon.com
More examples
A child who has been abandoned and whose parents are unknown
Foundling is the ninth studio album by English singer-songwriter David Gray. The double album is set to be released on 16 August 2010 in the United Kingdom, and on the following day in the United States by Mercer Street/Downtown Records.
In the Noon Universe created by Arkady and Boris Strugatsky, the foundlings are a group of 13 humans, who evolved out of the embryos stored in the "sarcophagus". The embryos were discovered on December 26, 2137 by Boris Fokin's group of explorers on an unnamed planet in star system EN-9173. ...
A Foundling, also known as The Mojave Experiment, is an American feature film which premiered at the 13th Annual Dances With Films film festival in 2010. ...
The Foundling is a 1916 silent film directed by John B. O'Brien. The film is a remake of a 1915 version and serves as its replacement, as the 1915 version was destroyed in a fire.
The Foundling is a novel written by Georgette Heyer.
An abandoned child, left by its parent(s), often a baby left at a convent or similar safe place
An abandoned child with unknown parents. Foundlings were typically left at a safe location, such as a church.
An orphan, or abandoned child, who is then kept and educated at the parish expense.