Rose J. Nadeau former longtime Billerica resident; 55 LOWELL Rose J. (Beraldi) Nadeau, age 55, wife of 33 years of Richard Nadeau Sr., died unexpectedly Sunday, at their home. Mrs. Nadeau was born in East Cambridge, January 25, 1953, daughter of the late Gene A. and Valentine (Petrosino) Beraldi. She was a graduate of Cambridge Latin High School class of 1970. She lived in Billerica for 35 years before moving to Las Vegas, Florida, and most recently, Lowell. Besides her husband, she is survived by one daughter, Jennifer Mallias of Lowell; one stepson, Richard Nadeau Jr. of Nashua; one brother, Michael Beraldi, and her dear friend, Carol Gardner, both of Billerica. She was the loving grandmother of Gina and Nikolas Mallias. She was also the mother of the late Gene "Gino" Nadeau, and sister of the late Joseph Beraldi. NADEAU Of Lowell, formerly of Billerica, FL, and Las Vegas, unexpectedly April 13, Rose J. (Beraldi) Nadeau, wife of Richard Nadeau Sr. Funeral Wednesday from the SWEENEY MEMORIAL FUNERAL HOME, 66 Concord Rd., Billerica at 9 a.m. A Funeral Mass will be held in St. Mary's Church, Billerica at 10 a.m. Relatives and friends respectfully invited. Visiting hours Tuesday from 4 7 p.m. Burial in Fox Hill Cemetery, Billerica. Funeral Directors W. J. and Dean M. Laurendeau.