Mary De Ros

Mary was born in 1282.  Mary's father was William De Ros III Baron Ros and her mother was Maude Matilde Maud De Vaux. She had three brothers and three sisters, named William De Ros III Lord Ros of, John, Thomas, Agnes, Margaret and Alice.  She was the second oldest of the seven children.  She died at the age of 80 in 1362.

She had a biological son named William De Braose VIII Lord.