Definition of "conquering"

So Stellas heart finding what power Loue brings, / To keepe it ſelfe in life and liberty, / Doth willing graunt, that in the frontiers he / Vſe all to helpe his other conquerings: […]

c. 1580s, Philip Sidney, “Astrophel and Stella”, in Mary Sidney, editor, The Countesse of Pembrokes Arcadia […], 3rd edition, London: […] [John Windet] for William Ponsonbie, published 1598, sonnet 29, page 528