Question: When did Robert Arden, father of Mary Shakespeare of Aston Cantlow, die?

Context paragraphs:
William de Cantilupe (died 1254): William de Cantilupe (died 25 September 1254) (anciently "Cantelow, Cantelou, Canteloupe, etc", Latinised to "de Cantilupo") was feudal baron of Eaton Bray in Bedfordshire, and "jure uxoris" (in right of his wife Eva de Braose, heiress of the de Braose dynasty of Welsh Marcher Lords) was feudal baron of Totnes in Devon and Lord of Abergavenny.  His chief residences were at Calne in Wiltshire and Aston Cantlow (named after his family), in Warwickshire, until he inherited Abergavenny Castle and the other estates of that lordship.

Bearley: Bearley is a village and civil parish in the Stratford district of Warwickshire, England.  The village is about five miles (8 km) north of Stratford-upon-Avon, bounded on the north by Wootton Wawen, on the east by Snitterfield, and on the south and west by Aston Cantlow.  The western boundary is formed by a stream running out of Edstone Lake; it would seem that the land, now part of Edstone in Wootton Wawen, between the stream where it flows west from the lake and the road running east from Bearley Cross, was originally included in Bearley.

Arden Shakespeare: The Arden Shakespeare is a long-running series of scholarly editions of the works of William Shakespeare.  It presents fully edited modern-spelling editions of the plays and poems, with lengthy introductions and full commentaries.  There have been three distinct series of the Arden Shakespeare over the past century, and the third series has not yet been completed.  Arden was the maiden name of Shakespeare's mother, Mary, but the primary reference of the enterprise's title is named after the Forest of Arden, in which Shakespeare's "As You Like It" is set.

Aston Cantlow Halt railway station: Aston Cantlow Halt railway station is a disused railway station half a mile north of the village of Aston Cantlow, Warwickshire, England.  The platform was 200 feet long by 8 feet wide and composed of wooden railway sleepers.  There was a corrugated iron waiting hut with a wooden bench inside.  Although there was no goods yard or sidings the station was lit by lights tended by the station master from Great Alne.

Mary Shakespeare: Mary Shakespeare, née Arden, (c. 1537–1608) was the mother of William Shakespeare.  She was the daughter of Robert Arden.  The Arden family had been prominent in Warwickshire since before the Norman Conquest.  She was the youngest of 8 daughters, and she inherited her father's farm, now called Mary Arden's House, in Wilmcote, Warwickshire when Robert Arden died in December 1556.

Alcester–Hatton branch line: The Alcester to Hatton branch line was a thirteen mile long single-track branch railway line in Warwickshire, England, that ran from Hatton on the present day Chiltern Main Line to Alcester via four intermediate stations Claverdon , Bearley , Aston Cantlow Halt , and Great Alne .

Robert Arden: Robert Arden (11 December 1922 – 25 March 2004) was an American film, television and radio actor born in London who worked and lived mostly in the United Kingdom.

Wilmcote: Wilmcote is a village, and since 2004 a separate civil parish, in the English county of Warwickshire, about 3 mi north of Stratford-upon-Avon.  Prior to 2004, it was part of the same parish as Aston Cantlow, and the 2001 population for the whole area was 1,670, reducing to 1,229 at the 2011 Census.

Mary Arden's Farm: Mary Arden's Farm, also known as Mary Arden's House, is the farmhouse of Mary Shakespeare (née Arden), the mother of Elizabethan playwright William Shakespeare.  Because of confusion about the actual house inhabited by Mary in the mid-sixteenth century, the term may refer either of two houses.  Both are grade I listed and located in the village of Wilmcote, about three miles from Stratford-upon-Avon.

Aston Cantlow: Aston Cantlow is a village in Warwickshire, England, on the River Alne 5 mi north-west of Stratford and 2 mi north-west of Wilmcote and close to Little Alne, Shelfield, and Newnham.  It was the home of Mary Arden, Shakespeare's mother.  At the 2001 census, it had a population of 1,674, being measured again as 437 at the 2011 Census.

Supporting paragraphs: Aston Cantlow Mary Shakespeare
Answer: Arden died in December 1556.