In late 1399, Richard II abdicated, and Henry IV came to the thrown as the first Lancastrian King of England.

In 1405 Henry IV grants custody of St Marys to Bridlington ending the association with the Citeaux. .

This century saw the largest and bloodiest battles ever fought in England. With the 100 year war with France (1337 - 1453), and the War of the Roses (1455 - 1485) being the most significant.

A Brief History:

There were a lot of Henry's during this century. In short though...

1413 - Henry IV dies of a stroke, and Henry V took the thrown. His main concerns are dealing with the deposed Richard II; fighting with the French; the Scots; plots to overthrow the thrown; and political/religious movements such as the Lollards.

His main achievement is the unification of the English and French crowns under his authority.

1420 England reclaims Normandy, and England's claim to the French thrown is recognized.

1422 Henry V dies, and it succeeded by 9 month old son Henry VI .

The French resist the English monarchy. This is the era of Joan Of Arc whose courage inspired the French to resist the English

1449 Normandy is lost to the French

1455 - saw the start of the war of the Roses between the Dukes of York and Lancaster for control of the thrown of England. The first battle was at St Albans . between the House of York, and the House of Lancaster

In 1460 the Yorkist win the battle of Northampton and Henry VI is taken prisoner by the Yorkist lords.
1461 - Henry VI is deposed, and replaced by Edward IV the late son of the Duke of York. The House of York is founded (1461 - 1485) civil war continues with the Yorkists winning the largest battle on an English battle field The Battle of Towton - re-confirms Edwards IV position as King of England.

1483 - Edward IV dies, and is succeeded to the thrown by his son Edward V for a short period before Edward V and his brother (held in the tower), are declared technically bastards by Bishop Stillington , and Richard III takes the thrown.

1483-85 Richard III was the last King to reside at Scarborough Castle. He based a navy in Scarborough because he was expecting a Scotish invasion, and also to resist Henry Tudor (later Henry VII) - He stays for periods of time in Scarborough with his Queen, Anne Neville , and makes Scarborough a county with Mayor, sheriff and 12 aldermen replacing the old bailiffs.

1485 - Richard III is killed at the Battle of Bosworth Field . Henry Tudor ( Henry Vll ) becomes King founding the House of Tudor (1485 - 1603), bringing to a close the "War Of The Roses".

Scarborough's status as a county also ends with the death of Richard III.