Alexander De Mowbray
Alexander was born in 1290 in Kirklington, Yorks, England.

 Elizabeth Musters
Elizabeth was born in 1316.  Elizabeth is no longer alive.

 Elizabeth De Mowbray
Elizabeth was born in 1340 in Kirtlington, Yorkshire, England.  She died at the age of 51 in 1391 in Harewood, York, England.