Sultan Haitham bin Tarik Al Said is the first Sultan of Oman to visit the UK in 44 years. William and Catherine are in Windsor to greet the Omani ruler with Their Majesties at the start of a three-day official visit at the request of the British government. Key points and original sources are listed below.

• Sultan Haitham bin Tarik Al Said is the first Sultan of Oman to visit the UK in 44 years.S1

• William and Catherine are in Windsor to greet the Omani ruler with Their Majesties at the start of a three-day official visit at the request of the British government.S2