Collection B comprises property in co. Denb.: p's Llansilin (t's Moelfre, Bodlith, Lledrod, Priddbwll, Lloran, Sycharth, Estynllan, Rhiwlas), Llanarmon Dyffryn Ceiriog, [Llangadwaladr] (t. Tregeiriog), [Llansanffraid Glyn Ceiriog] (t. Nantyr), Llanrhaeadr-ym-Mochnant (t's Henfachau, Banhadla), [Glyntraean formerly part of Llangollen] (t's Crogeniddon, Nantygwryd). Property in co. Mont.: p's Llanrhaeadr-ym-Mochnant (t's Cefn-coch, Brithdir, Llanhafon, Abermarchnant), [Llansantffraed-ym-Mechain] (t. Llanerchemrys), Hirnant, Llangadfan (t's Cyffin, Moelfeliarth), [Llanerfyl] (t. Craen), Garthbeibio, Llanllugan, [Llanwyddyn] (t. Garthbwlch), Llanfyllin (t's Globwll, Nanthalan), Llanfihangel-yng-Ngwynfa (t. Cadwynfa), Llanfair Caereinion (t's Peniarth, Bryn-glas, Dol-ged, Brynelen, Gelligason, Gwenynog, Pen-tyrch), Llanwyddelan, Manafon, Llandrinio, Mochtre, Llanfair Caereinion Tithes: (t's Brynelen, Cil-yr-ych, Rhiwhiriarth, Rhosaflo, Llanloddian, Gwenynog, Bryn-glas, Dol-ged, Pen-tyrch). Property in co. Mer.: p's [Llanymawddwy] (t. Cywarch), [Llanuwchllyn] (t. Cynllwyd), [Llandderfel] (t's Betws-y-coed, Nanffreuar), [Llanycil] (t's Ismynydd, Streflyn), [Llandrillo yn Edeirnon] (t. Faerdref). Property in co. Caern.: p's Penmorfa, Beddgelert, Dolwyddelan, Capel Curig, Penmachno, Llanberis, Dwygyfylchi, Llanfairfechan. R15 (1716-19) also contains property in co. Denb.: p's Llanrhaeadr-ym-Mochnant (t's Trefeiliw, Tre-wern, Prys, Gartheryr) [Llangedwyn] (t. Sgrwgan), Llanarmon Mynydd Mawr (Maen Gwynedd), Abenbury, Wrexham (t's Erlas, Acton) which is afterwards combined with subdivision A. Collectors: John Davies, 1719-1735, Randle Jones, 1736-1738 and 1744-1745, Thomas Jones, 1739-1772, Edward Lloyd, 1741-1767, John Jones, 1768-1769, and William Owen 1770-1771. A duplicate copy of the rental for year 1719, without the co. Caern property, is to be found in NLW, Powysland Club Deposit, Parcel 27. From R21/7 (1721) onwards, with the exception of R15 (1722-5), property in Wrexham is added. R18/1 (1735) and R18/5 (1735) contain property in cos Denb. and Mont. only. R18/5 adds p. Llangedwyn and omits p. Llansilin (t. Lledrod). It also includes property from the Llanfihangel and Mochnant Collections.