▁in ▁Frank ▁and ▁Mon ica ' s ▁care , ▁and ▁remain ▁in ▁Ch ats worth . ▁ ▁Ben ▁Gall ag her ▁ ▁" Play ed ▁by : ▁Un known ▁( Series ▁ 1 1 ) ▁ ▁Ben ▁Gall ag her ▁( born ▁ 1 ▁December ▁ 2 0 1 3 ) ▁is ▁the ▁new born ▁son ▁of ▁Frank ▁( David ▁Th rel fall ) ▁and ▁Mon ica ▁Gall ag her ▁( An n abel le ▁A ps ion ), ▁and ▁Frank ' s ▁t enth ▁child . ▁He ▁is ▁born ▁in ▁the ▁final ▁episode ▁of ▁the ▁ele vent h ▁and ▁final ▁series . ▁ ▁He ▁was ▁born ▁in ▁The ▁J ockey . ▁After ▁his ▁birth , ▁he ▁is ▁named ▁Ben ▁by ▁Mon ica ▁who ▁fe ign s ▁bere av ement ▁over ▁the ▁baby ▁she ▁" mis car ried " ▁and ▁neglect s ▁him ▁while ▁Frank ▁shows ▁a ▁lack ▁of ▁interest ▁in ▁the ▁child ▁and ▁leaves ▁full ▁care ▁to ▁St ella . ▁Meanwhile , ▁Mon ica ▁Frank ' s ▁oldest ▁daughter , ▁F iona ▁Mc B ride ▁( An ne - Marie ▁D uff ), ▁returns ▁to ▁Ch ats worth ▁with ▁Carl ▁and ▁Lip . ▁F iona ▁attempts ▁to ▁make ▁Frank ▁and ▁Mon ica ▁see ▁that ▁their ▁dis astr ous ▁parent ing ▁is ▁only ▁going ▁to ▁damage ▁St ella ▁and ▁Ben ▁before ▁dec iding ▁to ▁take ▁St ella ▁and ▁Ben ▁back ▁to ▁Amsterdam ▁with ▁her , ▁leaving ▁her ▁in ▁the ▁care ▁of ▁her ▁old ▁friend , ▁Ke v ▁Ball ▁( De an ▁Len no