▁Ab u ▁Bak ar ▁of ▁Joh or ' s ▁w ives . ▁By ▁ 2 0 0 6 , ▁all ▁known ▁gra ves ▁were ▁ex hum ed ▁to ▁make ▁way ▁for ▁development ▁of ▁the ▁B idad ari ▁Est ate . ▁ ▁History ▁A ▁ 4 5 - acre ▁estate ▁in ▁Singapore ▁was ▁first ▁acquired ▁by ▁the ▁British ▁civil ▁engineer ▁Henry ▁Min chin ▁Sim ons ▁in ▁ 1 8 5 5 , ▁there ▁he ▁had ▁the ▁residence ▁built ▁between ▁ 1 8 5 5 ▁to ▁ 1 8 6 1 ▁and ▁later ▁ex changed ▁it ▁with ▁William ▁Nap ier ▁for ▁his ▁Ty ers all ▁estate . ▁▁ ▁The ▁estate ▁was ▁subsequently ▁sold ▁to ▁Tem eng g ong ▁Ab u ▁Bak ar ▁in ▁the ▁mid - 1 8 6 0 s . ▁He ▁gave ▁it ▁to ▁his ▁second ▁wife , ▁a ▁Dan ish ▁woman ▁Z uba id ah ▁b int i ▁Abd ul lah ▁who ▁was ▁born ▁Cec ilia ▁C ath arina ▁L ange , ▁for ▁her ▁residence . ▁Thus ▁the ▁estate ▁and ▁house ▁was ▁known ▁as ▁B idad ari ▁and ▁Ist ana ▁B idad ari ▁in ▁reference ▁to ▁the ▁beauty ▁of ▁the ▁Tem eng g ong ' s ▁wife ▁as ▁compared ▁to ▁the ▁f ai ries . ▁ ▁So on ▁after ▁Ab u ▁Bak ar ▁proc laimed ▁the ▁Sultan ▁of ▁Joh or ▁in ▁ 1 8 8 5 , ▁S ult ana ▁Z uba id ah ▁moved ▁to ▁Joh or . ▁The ▁palace ▁itself ▁was ▁left ▁vac ant ▁until ▁its ▁demol ition ▁in ▁