If the Grandparent Was Born in Northern Ireland
A grandparent born in Northern Ireland holds an Irish line: section 6 says the island of Ireland, and section 7(2) says their silence does not break yours.
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United-Kingdom
Born Before the Country Existed: 1922, 1920, 1947, 1861 and 1871 as Cut-offs
A citizenship by descent cut-off date can predate the state itself — 1861 Italy, 1871 Germany, 1920 Poland, 1922 Ireland, 1947 Canada. What each one decides.
Adopted, or Born Outside Marriage: Where the Line Still Holds and Where It Needs a Declaration
Born outside marriage or adopted: where a citizenship by descent claim still holds, where it needs a declaration, and where an adoption ends the line instead.
Lost by Marriage: When a Grandmother's Wedding Ended the Line, Country by Country
Where a grandmother lost citizenship by marriage the line ends at the wedding, not at a birth. The rule in Germany, Italy, Britain and Poland, each dated.
The Grandmother's Line: 1948 in Italy, 1975 in Germany, 1983 in Britain, and the Routes That Repair Two of Them
Citizenship by descent through a mother breaks at 1948 in Italy, 1975 in Germany, 1983 in Britain. Two of the three have a repair route; one needs a court.
Where the Line Breaks: Seven Breaks, and the One Date Each Turns On
Can you lose your citizenship before you are born? The seven breaks that end a descent claim in Ireland, Canada, Germany, Italy, Poland and the UK, dated.
Which Descent Countries Allow Dual Citizenship With the United States, Dated
What countries allow dual citizenship with the US? All six a descent claim runs through, each rule dated, and the German one that changed on 27 June 2024.
Does the Line Hold? The Grandparent Rule in Six Countries, as One Table
Whether a grandparent born in Ireland, Canada, Germany, Italy, Poland or the UK passes citizenship by descent to you, and where the answer is stop here.