What is Mary Dudley, Lady Sidney's middle name?

Dudley, Lady

When did Mary Dudley, Lady Sidney die?

August 9, 1586

What is Mary Dudley, Lady Sidney nationality?

British

Short Biography

Mary Sidney (née Dudley), Lady Sidney (c. 1530–1535 – 9 August 1586) was an English lady-in-waiting at the court of Elizabeth I, and the mother of the courtier and poet Sir Philip Sidney. A daughter of John Dudley, Duke of Northumberland, she was marginally implicated in her father's attempt to place Lady Jane Grey on the English throne and affected by his attainder.