In extended use. Any of various structures which give the occupant a conspicuous or elevated position… An elevated royal pew or seat in a church. Obs…

A private chapel, or reserved area of a church, for the use of a lord, monarch, etc.; (also) a private pew. Obsolete.

In a church: a place where seating, often enclosed, is reserved for the use of a particular (often distinguished) worshipper or group of…

A pew in a church, chapel, etc., permanently reserved for the use of a particular (usually upper-class) family.

a pew in a church furnished like a small parlour and usually occupied by the most important family in the parish.