From Longman Dictionary of Contemporary Englishbe in somebody’s giftbe in somebody’s giftBritish English formalCONTROL if something is in your gift, you have the power to decide who it should be given to All appointments to military and administrative posts were in the gift of the King. → gift
Examples from the Corpus
be in somebody’s gift• How much control had the monarch over appointments to offices which legally were in his gift?• Bishoprics were in the royal gift and, as sizeable landed endowments, they were like fiefs.• All appointments to military and administrative posts were in the gift of the Grand Prince.• It has run Bavaria for 30 years and the state premiership is in its gift.• Sunday morning, Rice was in a hotel gift shop. 