Some points about late medieval (’bastard’?) swords

When is it a ’longsword’, and when is it a ’bastard sword’? Is there in fact any difference? First sword: 1st Sword: 13th Century. spade e daghe Del Tin 2nd sword (appears at 1:25): Tinker Pearce (can be bought here: ) 3rd sword (appears 2:16): DelTin again, 14th Century. 4th sword (appears 3:55) - Bought from