As much fun I it would be for me to give my own summary of the life of King Richard III I fear my version would be too long, contain unnecessary details, and bore the crap out of you. Here is a lovely concise version I found online  at http://www.middle-ages.org.uk/timeline-of-king-richard-iii.htm. 

Timeline of Key Dates	Timeline of King Richard III Key events
r. 1483 -1485	Reigned as King of England: 26 June 1483 - 22 Aug,1485
1452	King Richard III was born on 2 October 1452 at Fotheringay Castle. He was the son of Richard, Duke of York (1411-1460) and Cecily Neville (1415-1495) and the brother of King Edward IV
1460	The Battle of Wakefield: Richard's father was killed in the battle. Richard spent his childhood at Middleham Castle under the tutelage of his uncle Richard Neville, the Earl of Warwick ( the Kingmaker )
1461	Warwick was instrumental in deposing King Henry VI and replacing him with Richard's eldest brother, Edward on March 4: Edward of York was declared King Edward IV of England
1472	July 12, 1472: Richard married Anne Neville (c. 1456-1485) who was the younger daughter of Richard Neville, Earl of Warwick and Anne Beauchamp
1473	King Richard has a son: Edward of Middleham, also known as Edward Plantagenet (1473 - April 9, 1484) was born in 1473, he was the only son of King Richard III of England and his wife Anne Neville.
1482	Richard recaptured Berwick-upon-Tweed from the Scots
1483	Easter: King Edward IV fell ill during Easter 1483. He named his brother Richard, Duke of Gloucester as Protector after his death and entrusted his young sons and little princes, Edward and Richard, to his care. Richard had always remained loyal to King Edward IV
1483	King Edward IV died: April 9, 1483 at Westminster. He was buried at Windsor Castle
1483	The young prince ascended the throne as Edward V when his father died in 9th April 1483. Edward V was joined by his brother Prince Richard at the Tower of London to await his coronation
1483	16th June 1483:  The coronation of Edward V was cancelled
1483	June 25 1483: Parliament declared the two little princes illegitimate and, as next in line to the throne, their uncle and Protector, Richard, Duke of Gloucester, was declared the true King. The two little princes were never seen again
1483	26 June 1483: Richard, Duke of Gloucester was declared King Richard III
1483	July 6, 1483: Richard was crowned at Westminster Abbey.
1484	April 9 1484: Edward of Middleham, also known as Edward Plantagenet the only son of King Richard III of England died suddenly, cause unknown
1484	March 16 1484: Anne Neville, the wife of King Richard III died of tuberculosis
1485	Battle of Bosworth Field 22 August 1485: King Richard III  was killed and his supporters defeated at the Battle of Bosworth Field in Leicestershire against Lancastrian forces led by Henry Tudor
1485	Richard was the last king of the Plantagenet family, who had ruled over England for more than three hundred years. Richard's defeat at Bosworth Field by Henry Tudor ended the Plantagenet dynasty and the Wars of the Roses and heralded the Tudor dynasty