Alternative names

The following alternative names exist:

Name	Status	Language	Start	End	Authority
TYNDAETHWY	Preferred	Welsh			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 58.
DINDAETHWY	Preferred	English			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 58.

Unit associations

We know of no associations with other units.

Unit history

This unit was part of the following units:

Name	Type	Start	End	Authority
ANGLESEY	Ancient County			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 58.

Boundary changes

We know of no boundary changes affecting this unit.

Lower level units

This unit contained the following units:

Name	Type	Start	End	Authority
BEAUMARIS CP/AP	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 10.
LLANDDONA CP/AP	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 111.
LLANDDYFNAN AP/CP	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 113.
LLANDEGFAN AP/CP	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 105.
LLANDYSILIO CP/AP	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 110.
LLAN FAES AP/CP	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 116.
LLANFAIR MATHAFARN EITHAF CP/Ch/AP	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 117.
LLANFAIR PWLLGWYNGLL AP/CP	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 118.
LLANGOED CP/Ch/AP	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 127.
LLANIESTYN CP/AP	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 132.
LLANSADWRN AP/CP	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 137.
PENMYNYDD AP/CP	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 174.
PENTRAETH CP/AP/Ch	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 177.
TREGAEAN CP/Ch/AP	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 210.