Father Owen Lee in his magisterial book "Wagner and the Wonder of Art"
notes the Classic underpinnings in 'Die Meistersinger'....the
convention of a younger girl with an older man is mirrored by the
courting of a young man with an older woman. This is a convention in
comedy that traces its roots in Roman works of Terence and Plautus.

So I would argue that Madalena is much older than David.

Tauser