Isa Muhammad Effendi or Ustad
Isa was a Persian architect from Iran he and his
colleague Ismail Effendi entered the service of
the Mughal Emperor Shah Jahan after the
Ottoman Sultan Murad IV and the Mughals
exchanged ambassadors. Isa Muhammad
Effendi is often described as the chief architect
of the Taj Mahal. Recent research suggests the
Pern architect, Ustad Ahmad Lahauri was the
most likely candidate as the chief architect of the
Taj, anassertion based on a claim made in
writings by Lahauri's son Lutfullah Muhandis.