âŠto power by negotiating the Treaty of AngoulĂȘme (1619), which reconciled Louis XIII to his mother. After the death in 1621 of Louisâs favourite, Charles dâAlbert, duc de Luynes, Richelieu regained effective power; he became a cardinal in 1622 and in April 1624 gained access to Louis XIIIâs council. OnâŠ
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