Alonso was born in London, England in 1690. He liked to walk along the river. But one night in the year of 1715, he accidentally fell off a bridge and almost drowned if Gabriel hadn't saved him and turned him into a hybrid.
During the Volturi Confrontation, Carlisle Cullen had come to the British coven to ask for their help, but Gabriel didn't want his coven to be found by the Volturi so he said no. But Alonso felt that they should have helped so he and evelyn and few other went help