Plaid chief Lansdown stands down as Cardiff councillor
Plaid Cymru's chief executive is standing down as a councillor in Cardiff after six years.
Gwenllian Lansdown is giving up her seat in the city's Riverside ward before getting married and moving to mid Wales.
She will stay on as the party's chief until after May's assembly elections.
A council spokeswoman said notice of the vacancy will be published, inviting any two electors to request an election.
Ms Lansdown said it had been a "tremendous honour and privilege" to represent the ward.
She is due to get married in the summer and will move to Llanfair Caereinion, Powys.
Plaid is part of Cardiff council's coalition administration.
Ms Lansdown said the move meant would have been "impossible" to continue as a councillor in Riverside.