
Ussher was born in Dublin, Ireland, into a well-to-do Anglo-Irish family. His grandfather, James Stanihurst, had been speaker of the Irish parliament, and his father was a clerk in chancery. Ussher's younger, and only surviving, brother, Ambrose, became a distinguished scholar of Arabic and Hebrew. According to his chaplain and biographer, Nicholas Bernard, the elder brother was taught to read by two blind, spinster aunts.
Ussher was a gifted polyglot (one who is multilingual), entering Dublin Free School and then the newly-founded (1591) Trinity College, Dublin on 9 January 1594, at the age of thirteen (not an unusual age at the time). He had received his Bachelor of Arts degree by 1598, and was a fellow and MA by 1600 (though Bernard claims he did not gain his MA till 1601). In May of 1602, he was ordained in the Trinity College Chapel as a deacon in the Protestant, established, Church of Ireland (and possibly priest on the same day) by his uncle Henry Ussher, the Archbishop of Armagh and Primate of All Ireland.
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