Sultan Muwallil Wasit I parents, children and grandchildren

Sultan Muwallil Wasit I (Pengiran Raja Bongsu Adipati) was the son of Sultan Muhammad Hassan of Brunei (1582-1598) from his "Putri Sulu" wife who is turn was the daughter of Sultan Muhammad al-Halim Buddiman (Pangiran Buddiman).[1]

It is claimed that Sultan Nasirud-Din II (1645-1648) and Sultan Salahud-Din Bakhtiar or Pangiran Baktial (1649/50-1680) were Sultan Muwallil Wasit I sons. [ref]

Of the Sultan Muwallil Wasit I's daughters, one was married to Sultan Qudarat of Maguindanao and another to Datu Balatamay (Baratamay), Rajah of Buayan. [ref]

Among Sultan Muwallil Wasit I grandchildren, Sultan Nurul-Azam (Pangyan Ampay, Sitti Kabila) daughter of Sultan Nasirud-Din II appear to have inherited from his father and reign for half a decade. She appears to be the only female ruler in the Sulu Sultanate [ref]

From his son, Pangiran Bakhtiar, three (3) grandsons succeeded the throne as Sultan Shahabud-Din (1685-1710), Sultan Mustafa Shafi ud-Din (1710-1718) and Sultan Badarud-Din I (1718-1732). [ref]

References:
[1] http://www.royalark.net/Brunei/brunei5.htm

Datu Aceh, Admiral of the Fleet

When Raja Bongsu came to Sulu to become Sultan Muwallil Wasit I, with him was Datu Aceh, an experienced fighter or warrior, as admiral of his fleet [1], as adviser [2] and as his aide-de-camp [3].

In 1627, "Datu Acheh, on official business in May Nilad for the Sultanate, was intercepted by Manila Spaniards on his way home; In retaliation, Sultan Wasit led 2,000 Tausug warriors in raiding Spanish shipyards in Camarines south of May Nilad"[3].

In 1629, "the Sultanate of Sulu sent anew another expedition under Datu Acheh to attack Spanish settlements in Camarines, Samar, Leyte and Bohol." [3]

In 1646, a treaty was signed with the Spaniards. This was unacceptable to Datu Aceh, so he returned to Brunei, [2] six years after the court was move to Dungon with the Capture of Jolo in 1638.

References:
[1] Reyes, Portia L.. "Bungsu, Raja (of Sulu)." Encyclopaedia of Islam, THREE. Edited by: Kate Fleet, Gudrun Krämer, Denis Matringe, John Nawas, Everett Rowson. Brill Online, 2015. Reference. 24 August 2015 <http://brillonline.nl/entries/encyclopaedia-of-islam-3/bungsu-raja-of-sulu-COM_23370> ;First appeared online: 2009; First Print Edition: issn: 1573-3912, 2009-04

[2] Saunders, Graham. (2013). A History of Brunei. Routledge. p. 63 - https://books.google.com.ph/books?id=DUv8AQAAQBAJ&pg=PA63&lpg=PA63&dq=datu+aceh,+raja+bongsu&source=bl&ots=Y3qbl6g_H5&sig=F5YQ9fzLQ33OF_8MbhPf_dsrCTA&hl=en&sa=X&ved=0CBwQ6AEwAGoVChMIzPzFubbDxwIVRSSOCh3zBwHw#v=onepage&q=datu%20aceh%2C%20raja%20bongsu&f=false

[3] Ang, Josiah C. Historical Timeline of the Royal Sultanate of SuluIncluding Related Events of Neighboring Peoples. -http://www.seasite.niu.edu/tagalog/Modules/Modules/MuslimMindanao/historical_timeline_of_the_royal.htm

Sultan Muwallil Wasit I

Sultan Muwallil Wasit I is reported to be the first Sulu Sultan to establish court at Dungon, Tawi-Tawi [1]. Who was he?

Before he became Sultan, he was known as Raja Bongsu to the Spaniards [ref]

Genealogy

Was  he a son of Sultan Hassan of Brunei? Was his mother the sister of Sultan Batara Shah Tengah, his predecessor?

In the Brunei Sarsila (Genealogy) on Royal Ark website, He is known as "Y.A.M. Raja Bongsu, Pangiran Adipati Agung" and "who succeeded as H.H. Paduka Maulana Maha Sri Sultan Muwali al-Wasit Shah, Sultan of Sulu (s/o Putri Sulu). Therefore his father was Sultan Muhammad Hassan, Sultan of Brunei from 1582 to 1598, who married a daughter of Sultan Muhammad al-Halim Buddiman, Sultan of Sulu and sister of Sultan Batara Shah Tengah [2]

Interestingly, his maternal grandfather Sultan Muhammad al-Halim married and therefore his maternal grandmother was a "Putri Brunei" daughter of Brunei Sultan 'Abdu'l Kahar Jalil ul-Alam [3].

Marriage
Sultan Muwallil Wasit I is reported to have married a Sulu Princess (Putri Sulu), perhaps a distant cousin. He was not alone, his younger brother Pangiran Shahbandar Maharaja Laila also married another Putri Sulu. [9]

Royal Ascend

Sultan Muwallil Wasit I became the 9th Sulu Sultan succeeding his uncle Sultan Batara Shah Tengah. [ref] He reigned for about forty (40) years between 1610 and 1650 [4]. 

In his 3rd decade in power and with the Capture of Jolo by the Spaniards in 1638, he moved his royal court to Dungon [ref]. Thus he was in power and governing the state from Dungon for 12 years until his death! [ref]

Brothers in Power
He became Sulu Sultan 12 years after his eldest brother became Raja Tua 'Abdu'l Jalil [5] become Brunei Sultan Abdu'l Jalil ul-Akbar in 1598 and reigned up to 1659 [6].

Another older brother Raja Tengah Ibrahim disputed Raja Tua 'Abdu'l Jalil's claim to the throne, was expelled from Brunei and "eventually establishing his rule over parts of Sarawak, under the title of Sultan Anum Ibrahim 'Ali 'Umar Shah". [7]

Another older brother Raja Muhammad 'Ali eventually become Brunei Sultan Haji Muhammad 'Ali (1660 - 1661) ten years after the demise of Sultan Muwallil Wasit [8].

References:

[1] https://en.wikipedia.org/wiki/List_of_sultans_of_Sulu
[2] http://www.royalark.net/Brunei/brunei5.htm
[3] Ibid
[4] Same as [1]
[5] Same as [2]
[6] Ibid
[7] Ibid
[8] Ibid
[9] Ibid