Ka cika wannan jumla: Ya gaji mahaifinsa a wannan ofishin a shekara ta 1616, kuma a shekara ta gaba ya halarci taron manyan mutane a Rouen da saurayi Louis XIII ya kira. A cikin 1618 an nada shi mai ba da shawara na jihar kuma a watan Maris na 1624 aka kira shi zuwa Paris, inda ya sami tagomashi tare da Cardinal Richelieu. Ya nuna iyawar gudanarwa da babban aminci ga gwamnatin tsakiya a matsayin mai kula da Guienne a 1627, inda halayensa na zartarwa suka zo gaba, kuma inda ya bayyana a fili cewa ya rabu da asalinsa a cikin "majalisun" don zama amintaccen mabiyin Richelieu. A shekara ta 1628 ya yi shawarwari game da iyakar iyaka tare da Spain. A cikin 1629 ya kasance tare da sojojin sarki da na kadinal a cikin Yaƙin Mantuan Succession, inda ya kasance a baya a Turin don yin aiki a kan tattaunawar zaman lafiya, bayan da ƙungiyar sarauta ta koma Faransa; don haka a shekara ta 1631 ya san Mazarin, wanda ya sami damar gabatar da shi ga Richelieu. Servien na daya daga cikin wadanda suka sanya hannu kan yarjejeniyar.
Yarjejeniyar Cherasco da kuma yarjejeniyoyi tare da Duke na Savoy (1631<unk>1632).