▁one ' s ▁coat ▁of ▁arms , ▁with ▁or ▁without ▁adopt ing ▁or ▁app ending ▁a ▁new ▁surname , ▁by ▁Royal ▁Lic ence , ▁that ▁is ▁to ▁say ▁a ▁lic ence ▁in ▁the ▁form ▁of ▁a ▁war rant ▁from ▁the ▁Crown ▁directed ▁to ▁the ▁Kings ▁of ▁Ar ms ▁instruct ing ▁them ▁to ▁exempl ify ▁the ▁transferred ▁arms ▁or ▁a ▁version ▁of ▁them ▁to ▁the ▁license e ▁in ▁his ▁or ▁her ▁new ▁name . ▁Royal ▁Lic ences ▁are ▁issued ▁on ▁the ▁advice ▁of ▁G arter ▁King ▁of ▁Ar ms ▁and ▁are ▁usually ▁dependent ▁on ▁there ▁being ▁some ▁const ra ining ▁circumstances ▁such ▁as ▁a ▁test ament ary ▁inj unction ▁( a ▁requirement ▁in ▁a ▁will ) ▁or ▁a ▁good ▁reason ▁to ▁wish ▁to ▁perpet uate ▁a ▁particular ▁coat ▁of ▁arms . ▁The ▁Royal ▁Lic ence ▁is ▁of ▁no ▁effect ▁until ▁and ▁unless ▁the ▁exempl ification ▁is ▁issued ▁and ▁recorded ▁in ▁the ▁College . ▁Royal ▁Lic ences ▁are ▁gaz ett ed ▁and ▁make ▁a ▁de ed ▁poll ▁unnecessary . ▁ ▁Gene alog ical ▁records ▁ ▁Due ▁to ▁the ▁inher itable ▁nature ▁of ▁co ats ▁of ▁arms ▁the ▁College ▁have ▁also ▁been ▁involved ▁in ▁gene al ogy ▁since ▁the ▁ 1 5 th ▁century . ▁The ▁College ▁regularly ▁conduct ▁gene alog ical ▁research ▁for ▁individuals ▁with ▁families ▁in ▁the ▁British ▁Is les ▁of ▁all ▁social ▁classes . ▁As ▁the ▁College ▁is ▁also ▁the ▁official ▁repository ▁of ▁gene alog ical ▁materials ▁such ▁as ▁pedig ree ▁charts ▁and ▁family ▁trees . ▁The ▁College ' s ▁extensive ▁records ▁within