Complex sentence: Northumberland expanded greatly in the Tudor period, annexing Berwick-upon-Tweed in 1482, Tynedale in 1495, Tynemouth in 1536, Redesdale in ca.
Split into simpler sentences: Northumberland expanded greatly in the Tudor period. It annexed Berwick-upon-Tweed in 1482, Tynedale in 1495, Tynemouth in 1536, Redesdale in ca.