WATCH: Out lesbian Senator Katherine Zappone’s call for marriage equality in Ireland

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Katherine Zappone, Ireland’s only out lesbian senator, says the country “stands poised to become a beacon of freedom” if it passes equal marriage.

A referendum on legalising the reform will be held in May.

In a video for Ireland’s Marriage Equality campaign, Senator Zappone said: “This is an opportunity for Ireland to make history in 2015.

“To make sure we embrace this historic moment, it’s important that you speak with your families, friends, colleagues and neighbours about why marriage equality is important to you.”

Senator Zappone has been campaigning for equal marriage in Ireland for more than a decade.

She married her partner, Ann Louise Gilligan, in Canada during 2003.

In 2006, the High Court in Dublin rejected recognition of their marriage, stating that marriage could only be defined between members of the opposite sex.