In 1594 / AH 1004 Mimar (court architect) Davud Ağa built the türbe of Murad III, where the Sultan and his valide, Safiye Sultan were later buried.[1] The octagonal mausoleum of their son Mehmed III (r. 1595–1603) and his valide was built next to it in 1608 (AH 1017) by royal architect Dalgiç Mehmet Aĝa.[100] His son Mustafa I (r. 1617–1618, 1622–1623) converted the baptistery into his türbe.[100]