Vajiralongkorn of Thailand King Rama X (m) Parents: Bhumibol Adulyadej of Thailand King Rama IX (m) & Sirikit Kitiyakara (f) Events: Srirasmi Suwadee (f) Parents: Apiruj Suwadee (m) & Wanthanee (f) Events: #1: Dipangkorn Rasmijoti of Thailand (m) Events: Birth 29 April 2005 – Bangkok, Bangkok, Thailand (age )