Individual Details

When Blanche's father Henry of Grosmont, 1st Duke of Lancaster, died in 1361, there were no male heirs. John of Gaunt, her husband, in her right became Earl of Lancaster, Earl of Derby, Earl of Lincoln, and Earl of Leicester, receiving all titles after the death of Blanche's older sister Maud, in 1362.

There were seven children, Henry IV, being the 6th child and only son that lived past infancy.

Birth	25 Mar 1345
Marriage	19 May 1359	Reading Abbey, Reading, Berkshire, England - John Lancaster of Gaunt, 1st Duke of Lancaster
Death	12 Sep 1368

Spouse	John Lancaster of Gaunt, 1st Duke of Lancaster (1340 - 1399)
Child	Henry Lancaster IV, King of England, (1399-1413) (1367 - 1413)