Labour faced a struggle to win the seat, but hoped their lead in the polls would translate to a by-election victory.

As well as the by-election victories, major gains were made at the 1997, 2001 and 2005 general elections.

It was the party's first by-election victory in the Republic of Ireland since 1925.

He returned to parliament following a by-election victory on March 8, 1860.

Case was re-elected in the 1945 federal election held in June 1945, three months after his by-election victory.

His first and last by-election victories were 33 years and 3 months apart.

Surely last week's by-election victory helped him?

The election was contested by incumbent Alexander Moore who had won a historic by-election victory in the district just two years before.

His by-election victory is regarded as a seminal moment for Plaid Cymru.

After his by-election victory, Fremantle held the seat for the next 24 years, until his death in August 1943.