William IV de Montagu , KB, 1st Earl Salisbury
William IV de was born about 1302 in Cassington, Oxfordshire, England.  He died in Bisham, Berkshire, England.

 Katherine de Grandison
Katherine de was born about 1302 in Ashperton, Herefordshire, England.  She died on April 23rd, 1349.

 Elizabeth de Montagu
Elizabeth de was born about 1318 in Donyatt, Somerset, England.  She died on May 31st, 1359 in Ashley, Hampshire, England.  She was buried in Tewkesbury Abbey, Gloucestershire, England.

 William de Montagu , KG, 2nd Earl of Salisbury
William de was born on June 19th, 1328 in Cassington, Oxfordshire, England.  He died at the age of 68 on June 3rd, 1397 in (dsps).

 Sibyl de Montagu
Sibyl de was born about 1330 in Donyatt, Somerset, England.

 John 1st Baron de Montagu , Sir Knight
John 1st Baron de was born about 1331 in Wark-upon-Tweed, Northumberlandshire, England.  He died in Salesburg, Berkshire, England.

 Phillipa de Montagu
Phillipa de was born about 1332 in Salisbury, Wiltshire, England.