User blog comment:Il Lupo/New Assassin's Creed Game/@comment-189.55.61.207-20110502182907/@comment-1153722-20110502185914

As far as we know now, he didn't wear the armor right away after he created it. Altaïr started writing the Codex during Bloodlines. The armor is featured in Codex page #19, and as of Codex page #24, he didn't have any children yet, and he was still wearing his Master Assassin robes when he conceived his first child.