Simplify the following text for a Grade 10 native English-speaking person.
Original: Many of the communities in the diocese , as well as the parish churches , bear a Celtic saint 's name , which is a reminder of the links with other Celtic lands , especially Ireland , Wales and Brittany .
Simplified: Many of the communities in the diocese , as well as the parish churches , bear a Celtic saint 's name , which is a reminder of the links with other Celtic lands .