Question: What is the cause of the World War I hospital ship that was a Royal Mail Ship until 1914 ?

text: List of hospital ships sunk in World War I
Hospital Ships sunk

During the First World War, many hospital ships were attacked, both on purpose or by mistaken identity. They were sunk by either torpedo, mine or surface attack. They were easy as well as tragic targets, since they carried hundreds of wounded soldiers from the front lines.
Name Nationality Date Location of wreck Cause Lives lost
HMHS Anglia UK 17 November 1915 One mile east of Folkestone Gate Struck mine that had been laid by German U-boat UC-5 134
HMHS Asturias UK 20 March 1917 6 miles off Start Point Torpedoed by German U-boat UC-66 35
HMHS Huntley UK 21 December 1915 .75 miles ( 1.21 km ) off the Boulogne LV Torpedoed by German U-boat German U-boat UB-10 2
HMHS Britannic UK 21 November 1916 Aegean sea 37°42′05″N 24°17′02″E / 37.70139°N 24.28389°E / 37.70139 ; 24.28389 Struck a mine laid by German U-boat UC-73 30
HMHS Dover Castle UK 26 May 1917 Mediterranean Sea 37°45′00″N 007°45′00″E / 37.75000°N 7.75000°E / 37.75000 ; 7.75000 Torpedoed by German U-boat UC-67 7
HMHS Donegal UK 17 April 1917 19 miles south of the Dean lightship on passage Le Havre for Southampton 50°26′00″N 01°00′00″W / 50.43333°N 1.00000°W / 50.43333 ; -1.00000 Torpedoed by German U-boat UC-21 40
HS Elektra Austria-Hungary 18 March 1916 Off Cape Planka Torpedoed by French submarine Ampère . Out of service until early Sep 1916 ; returned to her owner 04 Dec 1916 2
HMHS Galeka UK 28 October 1916 French coast , near Le Havre 49°34′01″N 000°05′05″E / 49.56694°N 0.08472°E / 49.56694 ; 0.08472 Struck a mine laid by UC-26 19
HMHS Glenart Castle UK 26 February 1918 Bristol Channel 51°07′00″N 005°03′00″W / 51.11667°N 5.05000°W / 51.11667 ; -5.05000 Torpedoed by German U-boat UC-56 162
HMHS Gloucester Castle UK 30 March 1917 en route from Le Havre to Southampton Torpedoed by German U-boat U-32 3
SS India Greece 12 April 1917 Greek hospital ship India being sunk in the Mediterranean Sea , east of Gibraltar , by German U-boat SM U-35 U 35 ( Captain Lothar von Arnauld de la Perière ) , 12 April 1917 Torpedoed by German U-boat U-35
HS Koningin Regentes Netherlands 06 June 1918 21 miles East of Leman lightship Torpedoed by German U-boat UB-107 7
HMHS Lanfranc UK 17 April 1917 English Channel 50°09′00″N 000°10′04″W / 50.15000°N 0.16778°W / 50.15000 ; -0.16778 Torpedoed by German U-boat UB-40 40
HMHS Letitia Canada 1 August 1917 Portuguese Cove , Halifax Harbour Grounded out due to a pilot error in heavy fog 1
HMHS Llandovery Castle Canada 27 June 1918 off southern Ireland 51°18′00″N 009°54′00″W / 51.30000°N 9.90000°W / 51.30000 ; -9.90000 Torpedoed by German U-boat U-86 234
HS Marechiaro Italy 21 February 1916 Off Cape Laghi , Durazzo , Albania Struck a mine laid by German U-boat UC-12 33
HS Oceania Austria-Hungary 04 October 1918 Between Cape Rodoni and Durazzo Mined and beached near Cape Rondoni , and on October 15 , 1918 was blown up by the Austrians to avoid falling into Italian hands ?
HS Portugal ( Португаль ) Russia ( French crew , Russian medical staff ) 17 March 1916 Near Rize Province off the Turkish coast in the Black Sea Torpedoed by German U-boat U-33 90
HMHS Rewa UK 4 January 1918 13 miles off Hartland Point , UK 50°55′00″N 004°49′00″W / 50.91667°N 4.81667°W / 50.91667 ; -4.81667 Torpedoed by German U-boat U-55 4
HMHS Rohilla UK 30 October 1914 Saltwick Nab , one mile south of Whitby Struck Whitby Rock 84